Transcript Gr03_Ch_14 - Etiwanda E

Chapter 14
Multiply by One-Digit Numbers
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14
Multiply by One-Digit Numbers
Lesson 14-1
Multiply Multiples of 10, 100, and
1,000
Lesson 14-2
Problem-Solving Strategy: Use
Logical Reasoning
Lesson 14-3
Estimate Products
Lesson 14-4
Multiply by a One-Digit Number
Lesson 14-5
Problem-Solving Investigation:
Choose the Best Strategy
Lesson 14-6
Multiply Two-Digit Numbers
Lesson 14-7
Multiply Greater Numbers
Lesson 14-8
Multiply Money
14-1
Multiply Multiples of 10, 100, and 1,000
Five-Minute Check (over Chapter 13)
Main Idea and Vocabulary
California Standards
Example 1: Real-World Example
Example 2: Real-World Example
Example 3: Real-World Example
14-1
Multiply Multiples of 10, 100, and 1,000
• I will learn to multiply multiples of 10, 100,
and 1,000.
• multiples
14-1
Multiply Multiples of 10, 100, and 1,000
Standard 3NS2.4 Solve simple problems
involving multiplication of multi-digit numbers
by one-digit numbers (3,671 × 3 = ___ ).
Standard 3MR2.2 Apply strategies and results
from simpler problems to more complex
problems.
14-1
Multiply Multiples of 10, 100, and 1,000
Alejandra bought 6 boxes of beads to make jewelry.
Each box has 100 beads. How many beads does
Alejandra have?
Find 6 × 100. Use basic facts and patterns of zeros.
6×1=6
6 × 1 one = 6 ones
6 × 10 = 60
6 × 1 ten = 60 tens
6 × 100 = 600
6 × 1 hundred = 6 hundreds
Answer: So, Alejandra has 600 beads.
14-1
Multiply Multiples of 10, 100, and 1,000
Ronald buys 5 packs of stickers with 100 stickers
in each pack. How many stickers did Ronald buy
altogether?
A. 50 stickers
B. 5,000 stickers
C. 500 stickers
D. 5 stickers
14-1
Multiply Multiples of 10, 100, and 1,000
Mr. Lin bought 7 bags of gravel for his driveway.
There are 2,000 pieces in each bag. How many
pieces of gravel does Mr. Lin have?
You need to find 7 × 2,000.
14-1
Multiply Multiples of 10, 100, and 1,000
7 × 2 = 14
7 × 2 ones = 14 ones
7 × 20 = 140
7 × 2 tens = 14 tens
7 × 200 = 1,400
7 × 2,000 = 14,000
7 × 2 hundreds = 14 hundreds
7 × 2 thousands = 14 thousands
Answer: So, 7 × 2,000 = 14,000. Mr. Lin has
14,000 pieces of gravel.
14-1
Multiply Multiples of 10, 100, and 1,000
On a given day, 4,000 people ride a particular
rollercoaster at a popular amusement park.
How many people will have rode this particular
rollercoaster after 7 days?
A. 280
B. 280,000
C. 2,800
D. 28,000
14-1
Multiply Multiples of 10, 100, and 1,000
6,000 people fly each day at a busy airport. How
many people fly from the airport in 5 days?
You need to find 5 × 6,000.
14-1
Multiply Multiples of 10, 100, and 1,000
5 × 6 = 30
5 × 60 = 300
5 × 600 = 3,000
5 × 6,000 = 30,000
Answer: So, 5 × 6,000 = 30,000. About 30,000 people
will fly from the airport in 5 days.
14-1
Multiply Multiples of 10, 100, and 1,000
A crane operator was stacking 2,000-pound cement
blocks on top of each other 10 blocks high in a
column. What is the total weight of a column?
A. 2,000 pounds
B. 20,000 pounds
C. 200,000 pounds
D. 200 pounds
14-2
Problem-Solving Strategy: Use Logical Reasoning
Five-Minute Check (over Lesson 14-1)
Main Idea
California Standards
Example 1: Problem-Solving Strategy
14-2
Problem-Solving Strategy: Use Logical Reasoning
• I will solve problems by using logical reasoning.
14-2
Problem-Solving Strategy: Use Logical Reasoning
Standard 3MR2.3 Use a variety of methods,
such as words, numbers, symbols, charts,
graphs, tables, diagrams, and models, to
explain mathematical reasoning.
Standard 3NS2.1 Find the sum or
difference of two whole numbers between
0 and 10,000.
14-2
Problem-Solving Strategy: Use Logical Reasoning
Three friends all have on different shirts.
Hallie’s shirt is white. Jimar’s shirt is not green.
Lina’s shirt is not red. What is the color of each
of their shirts?
14-2
Problem-Solving Strategy: Use Logical Reasoning
Understand
What facts do you know?
• Hallie has on a white shirt.
• Jimar’s shirt is not green.
• Lina’s shirt is not red.
What do you need to find?
• The color of each person’s shirt.
14-2
Problem-Solving Strategy: Use Logical Reasoning
Plan
Make a table to show what you know. Then
use logical reasoning to find the color of each
person’s shirt.
14-2
Problem-Solving Strategy: Use Logical Reasoning
Solve
Hallie is wearing white. So, write yes by her
name under white. Place an X in all the rest of
the white column and the other colors for Hallie.
14-2
Problem-Solving Strategy: Use Logical Reasoning
Solve
Lina’s shirt is not red and cannot be white, so it
is green. The color that is left is red. Jimar’s shirt
must be red.
Answer: So, Hallie is wearing white, Lina is
wearing green, and Jimar is wearing red.
14-2
Problem-Solving Strategy: Use Logical Reasoning
Check
Look back at the problem. The answer makes sense
for the facts given.
So, the answer is correct.
14-3
Estimate Products
Five-Minute Check (over Lesson 14-2)
Main Idea and Vocabulary
California Standards
Example 1: Estimate by Rounding
Example 2: Estimate by Rounding
Example 3: Verify Reasonableness
14-3
Estimate Products
• I will estimate products.
• estimate
14-3
Estimate Products
Standard 3NS2.4 Solve simple problems
involving multiplication of multi-digit numbers
by one-digit numbers (3,671 × 3 = ___ ).
Standard 3MR2.1 Use estimation to verify the
reasonableness of calculated results.
14-3
Estimate Products
Each of 23 clubs can send 5 members to the
county competition. About how many members
will go to the county competition?
Estimate 5 × 23 by rounding to the nearest ten.
14-3
Estimate Products
Step 1 Round the factor that is greater than 10 to
the nearest ten.
5 × 23
5 × 20
23 is closer to 20 than 30.
So, 23 rounds to 20.
14-3
Estimate Products
Step 2 Multiply mentally.
5 × 20 = 100
Answer: So, about 100 club members can go to the
county competition.
14-3
Estimate Products
All 33 members of a local community group will be
donating $10 a piece for a worthy cause. About how
much money will the group be donating?
A. about $300
B. about $30
C. about $3,000
D. about $33
14-3
Estimate Products
There are 128 students in the play. They can each
invite 6 people to the play. About how many people
can be invited to the play?
Estimate 6 × 128 by rounding to the nearest hundred.
128 is closer to 100 than 200.
14-3
Estimate Products
6 × 128
6 × 100 = 600
Answer: So, about 600 people can be invited to
the play.
14-3
Estimate Products
A group of 212 kids were waiting in line to receive
5 free music CDs. About how many music CDs will
be needed to satisfy all the waiting kids?
A. about 100 CDs
B. about 1,000 CDs
C. about 10,000 CDs
D. about 500 CDs
14-3
Estimate Products
The senior class is going to Washington D.C.
for their class trip. A bus holds 43 students.
Will 5 buses be enough for 192 students?
Estimate 5 × 43.
5 × 43
Round 43 to 40.
5 × 40 = 200
Multiply mentally.
Answer: So, the buses can hold about 200 students.
200 > 192. So, 5 buses will be enough to
transport 192 students.
14-3
Estimate Products
A school wants to take their 298 honor roll
students to an art museum. Each charter bus can
hold 50 people. Will 6 buses be enough to take all
the students?
A. Yes, six buses will be enough.
B. Yes, but less than six buses are needed.
C. No, more than six buses are needed.
14-4
Multiply by a One-Digit Number
Five-Minute Check (over Lesson 14-3)
Main Idea and Vocabulary
California Standards
Example 1: Use a Model
Example 2: Use a Model
14-4
Multiply by a One-Digit Number
• I will multiply two-digit numbers by a one-digit
number with no regrouping.
• partial products
14-4
Multiply by a One-Digit Number
Standard 3NS2.4 Solve simple problems
involving multiplication of multi-digit numbers
by one-digit numbers (3,671 × 3 = ___ ).
14-4
Multiply by a One-Digit Number
Ajay and his sister each have 43 baseball cards.
How many cards do they have altogether?
The array on the next slide shows 2 × 43. Break the
grid into parts. Then use what you know about
multiplication to find the total number of squares.
14-4
Multiply by a One-Digit Number
The orange shaded part represents 2 × 40.
The blue shaded part represents 2 × 3.
14-4
Multiply by a One-Digit Number
Find the product of each part, or the partial
products. Then add the partial products.
2 × 40 = 80
2×3=6
80 + 6 = 86
So, 2 × 43 = 86.
Answer: Ajay and his sister have 86 baseball
cards in all.
14-4
Multiply by a One-Digit Number
After the season, David and his friend each had
26 stolen bases. How many stolen bases did
David and his friend have altogether?
A. 50 stolen bases
B. 60 stolen bases
C. 52 stolen bases
D. 62 stolen bases
14-4
Multiply by a One-Digit Number
A storeroom has 4 shelves with 212 boxes on
each shelf. How many boxes are there altogether?
Estimate 4 × 212
4 × 200 = 800
Think of 212 as 200 + 10 + 2.
14-4
Multiply by a One-Digit Number
212
× 4
8
40
+ 800
848
Answer: So, there are 848 boxes altogether.
14-4
Multiply by a One-Digit Number
The auditorium can hold 232 people. A particular
event is scheduled for 3 different times in one day
to be held in the auditorium. How many people will
be able to attend the event altogether?
A. 700
B. 669
C. 796
D. 696
14-5
Problem-Solving Investigation: Choose the Best Strategy
Five-Minute Check (over Lesson 14-4)
Main Idea
California Standards
Example 1: Problem-Solving Investigation
14-5
Problem-Solving Investigation: Choose the Best Strategy
• I will choose the best strategy to solve a problem.
14-5
Problem-Solving Investigation: Choose the Best Strategy
Standard 3MR1.1 Analyze problems by
identifying relationships, distinguishing
relevant from irrelevant information,
sequencing and prioritizing information, and
observing patterns.
14-5
Problem-Solving Investigation: Choose the Best Strategy
Standard 3NS2.4 Solve simple problems
involving multiplication of multi-digit numbers
by one-digit numbers (3,671 × 3 = ___ ).
14-5
Problem-Solving Investigation: Choose the Best Strategy
RYDELL: I need to fill 3 pitchers
and 2 punch bowls with strawberry
punch. It takes 11 cans of punch to
fill one pitcher and 24 cans of
punch to fill the punch bowl.
YOUR MISSION: Find how many cans of
punch are needed in all.
14-5
Problem-Solving Investigation: Choose the Best Strategy
Understand
What facts do you know?
• It takes 11 cans to fill 1 pitcher.
• It takes 24 cans of punch to fill 1 punch bowl.
What do you need to find?
• Find how many cans of punch are
needed in all.
14-5
Problem-Solving Investigation: Choose the Best Strategy
Plan
Solve a simpler problem. Solve for each part of
the problem then add.
14-5
Problem-Solving Investigation: Choose the Best Strategy
Solve
1 pitcher = 11 cans of punch
So, it takes 11 × 3 or 33 cans to fill 3 pitchers.
1 punch bowl = 24 cans
So, it takes 24 × 2 or 48 cans to fill two bowls.
Now find the total.
33 + 48 = 81
Answer: So, 81 cans of punch are needed in all.
14-5
Problem-Solving Investigation: Choose the Best Strategy
Check
Look back at the problem. Use addition to check.
So, the answer is correct.
14-6
Multiply Two-Digit Numbers
Five-Minute Check (over Lesson 14-5)
Main Idea
California Standards
Example 1: Multiply with Regrouping
Example 2: Real-World Example
Multiplication with Regrouping
14-6
Multiply Two-Digit Numbers
• I will multiply a two-digit number by a one-digit
number with regrouping.
14-6
Multiply Two-Digit Numbers
Standard 3NS2.4 Solve simple problems
involving multiplication of multi-digit numbers
by one-digit numbers (3,671 × 3 = ___ ).
Standard 3MR2.1 Use estimation to verify the
reasonableness of calculated results.
14-6
Multiply Two-Digit Numbers
A computer book has 7 chapters. There are
12 pages in each chapter. How many pages
are there in all?
Use models to help you find the product of 7 × 12.
Estimate 7 × 12
7 × 10 = 70
14-6
Multiply Two-Digit Numbers
One Way: Base-Ten Models
Step 1 Model 7 × 12.
7 groups of 12
14-6
Multiply Two-Digit Numbers
One Way: Base-Ten Models
Step 2 Combine models.
14 ones = 1 ten, 4 ones
14-6
Multiply Two-Digit Numbers
One Way: Base-Ten Models
Step 3 Find 7 × 12.
80
+
4
84
14-6
Multiply Two-Digit Numbers
Another Way: Paper and Pencil
Step 1 Multiply ones.
12
×
1
7 × 2 ones =
14 ones
714 ones = 1
4ten and 4 ones
Step 2 Multiply tens.
1
12
×
7 × 1 ten = 7 tens
77 tens + 1 ten =
848 tens
Answer: So, there are 84 pages in all.
14-6
Multiply Two-Digit Numbers
A building has 16 floors with 3 sets of male and
female restrooms on each floor. How many set of
male and female restrooms are there in the whole
building?
A. 39 restrooms
B. 32 restrooms
C. 48 restrooms
D. 45 restrooms
14-6
Multiply Two-Digit Numbers
A large egg carton holds 18 eggs. How many eggs
are in 5 large egg cartons?
Find the product of 5 and 18.
Estimate
5 × 18
5 × 20 = 100
Step 1 Multiply ones.
4
18
× 5
0
5 × 8 ones = 40 ones
14-6
Multiply Two-Digit Numbers
Step 2 Multiply tens.
4
18
× 5
90
5 × 1 ten = 5 tens
5 tens + 4 tens = 9 tens
The area model shows that 5 × 18 is 90.
14-6
Multiply Two-Digit Numbers
18
×
40
+ 50
90
5
Multiply ones.
Multiply tens.
Add partial products.
Answer: So, 5 large egg cartons hold 90 eggs.
Check for Reasonableness
90 is close to 100, so the answer is reasonable.
14-6
Multiply Two-Digit Numbers
A box of chocolates has 15 chocolate
candies. How many chocolate candies
are there in 5 boxes?
A. 75 chocolate candies
B. 65 chocolate candies
C. 55 chocolate candies
D. 60 chocolate candies
14-7
Multiply Greater Numbers
Five-Minute Check (over Lesson 14-6)
Main Idea
California Standards
Example 1: Real-World Example
Example 2: Real-World Example
14-7
Multiply Greater Numbers
• I will multiply three- and four-digit numbers by a
one-digit number with regrouping.
14-7
Multiply Greater Numbers
Standard 3NS2.4 Solve simple problems
involving multiplication of multi-digit numbers
by one-digit numbers (3,671 × 3 = ___ ).
Standard 3MR2.1 Use estimation to verify the
reasonableness of calculated results.
14-7
Multiply Greater Numbers
Mrs. Chen walks her dog 4 times a day. How many
times will she walk her dog in 133 days?
Find 4 × 133.
Estimate
4 × 133
4 × 100 = 400
Step 1 Multiply ones.
1
133
× 4
2
4 × 3 ones = 12 ones
14-7
Multiply Greater Numbers
Step 2 Multiply tens.
11
133
× 4
32
4 × 3 tens = 12 tens
Add the regrouped amount.
12 + 1 = 13 tens
Step 3 Multiply hundreds.
11
133
× 4
5 32
4 × 1 hundred = 4 hundreds
Add the regrouped amount.
4 + 1 = 5 hundreds
14-7
Multiply Greater Numbers
Answer: So, Mrs. Chen walks her dog 532 times
in 133 days.
Check for Reasonableness
Since 532 is close to 400, the answer is reasonable.
14-7
Multiply Greater Numbers
Doug drinks 6 glasses of water a day. If Doug
continues his pattern, how many glasses of water
will he drink after 126 days?
A. 665 glasses
B. 736 glasses
C. 756 glasses
D. 636 glasses
14-7
Multiply Greater Numbers
Karita takes 1,462 steps in one hour. How many
steps will she take in 4 hours?
Find 1,462 × 4.
Step 1 Multiply ones.
1,462
× 4
8
4 × 2 ones = 8 ones
14-7
Multiply Greater Numbers
Step 2 Multiply tens.
2
1,462
× 4
48
4 × 6 tens = 24 tens
Step 3 Multiply hundreds.
1 2
1,462
× 4
848
4 × 4 hundreds = 16 hundreds
Add the regrouped amount.
16 hundreds + 2 hundreds = 18 hundreds
14-7
Multiply Greater Numbers
Step 4 Multiply thousands.
1 2
1,462
× 4
5,848
4 × 1 thousand = 4 thousands
Add the regrouped amount.
4 thousand + 1 thousand = 5 thousands
Answer: So, Karita will take 5,848 steps in 4 hours.
14-7
Multiply Greater Numbers
Find 1,898 × 5.
A. 9,490
B. 10,560
C. 8,450
D. 5,670
14-8
Multiply Money
Five-Minute Check (over Lesson 14-7)
Main Idea
California Standards
Example 1: Multiply Money
Example 2: Zeros in Products
14-8
Multiply Money
• I will learn to multiply money.
14-8
Multiply Money
Standard 3NS3.3 Solve problems involving
addition, subtraction, multiplication, and division of
money amounts in decimal notation and multiply
and divide money amounts in decimal notation by
using whole-number multipliers and divisors.
14-8
Multiply Money
Greeting cards cost $2.19 each. Zina bought
4 cards. How much did she spend?
You need to find $2.19 × 4.
Step 1 Multiply ones.
3
$2.19
× 4
6
4 × 9 ones = 36 ones
14-8
Multiply Money
Step 2 Multiply tens.
3
$2.19
× 4
76
4 × 1 tens = 4 tens
Add the regrouped ten. 4 + 3 = 7
Step 3 Multiply hundreds.
3
$2.19
× 4
876
4 × 2 hundreds = 8 hundreds
14-8
Multiply Money
Step 4 Write the dollar sign and decimal point.
3
$2.19
× 4
$8.76
Place the decimal point and dollar sign.
Answer: So, Zina spent $8.76 on greeting cards.
14-8
Multiply Money
A bag of chips cost $1.25 each. Darlene wants
to buy 3 bags. How much will she spend?
A. $4.25
B. $3.75
C. $2.75
D. $3.25
14-8
Multiply Money
Nutrition bars cost $2.25 each. How much do
4 nutrition bars cost?
Estimate 4 × $2.25
4 × $2.00 = $8.00
Step 1 Multiply ones.
2
$2.25
× 4
0
4 × 5 ones = 20 ones
14-8
Multiply Money
Step 2 Multiply tens.
1 2
$2.25
× 4
00
4 × 2 tens = 8 tens
Add the regrouped tens. 8 + 2 = 10
Step 3 Multiply hundreds.
1 2
$2.25
× 4
900
4 × 2 hundreds = 8 hundreds
Add the regrouped hundreds. 8 + 1 = 9
14-8
Multiply Money
Step 4 Write the dollar sign and decimal point.
1 2
$2.25
× 4
$9.00
Place the decimal point and dollar sign.
Answer: So, 4 nutrition bars cost $9.00.
Check for Reasonableness
$9.00 is close to $8.00, so the answer is reasonable.
14-8
Multiply Money
A ticket to the movies cost $4.50 for students.
Leigh wants to buy 6 student tickets. How much
will she have to pay?
A. $32.00
B. $25.50
C. $27.00
D. $28.50
14
Multiply by One-Digit Numbers
Five-Minute Checks
Math Tool Chest
Image Bank
Multiplication with Regrouping
14
Multiply by One-Digit Numbers
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14
Multiply by One-Digit Numbers
14
Multiply by One-Digit Numbers
14
Multiply by One-Digit Numbers
14
Multiply by One-Digit Numbers
14
Multiply by One-Digit Numbers
Lesson 14-1 (over Chapter 13)
Lesson 14-2 (over Lesson 14-1)
Lesson 14-3 (over Lesson 14-2)
Lesson 14-4 (over Lesson 14-3)
Lesson 14-5 (over Lesson 14-4)
Lesson 14-6 (over Lesson 14-5)
Lesson 14-7 (over Lesson 14-6)
Lesson 14-8 (over Lesson 14-7)
14
Multiply by One-Digit Numbers
(over Chapter 13)
Solve. Bill is in the middle of a line of people
waiting to see a play. There are 8 people in
front of him. How many people are in the line?
A. 16 people
B. 17 people
C. 10 people
D. 15 people
14
Multiply by One-Digit Numbers
(over Lesson 14-1)
Multiply. Use basic facts and patterns.
4 × 800
A. 1,200
B. 320
C. 120
D. 3,200
14
Multiply by One-Digit Numbers
(over Lesson 14-1)
Multiply. Use basic facts and patterns.
7 × 3,000
A. 21,000
B. 2,100
C. 1,400
D. 4,000
14
Multiply by One-Digit Numbers
(over Lesson 14-1)
Multiply. Use basic facts and patterns.
5 × 90
A. 45
B. 450
C. 400
D. 14,000
14
Multiply by One-Digit Numbers
(over Lesson 14-1)
Multiply. Use basic facts and patterns.
2 × 5,000
A. 10,000
B. 1,000
C. 3,000
D. 300
14
Multiply by One-Digit Numbers
(over Lesson 14-1)
Multiply. Use basic facts and patterns.
6 × 300
A. 9,000
B. 900
C. 1,800
D. 18,000
14
Multiply by One-Digit Numbers
(over Lesson 14-1)
Multiply. Use basic facts and patterns.
5 × 400
A. 200
B. 2,000
C. 1,000
D. 100
14
Multiply by One-Digit Numbers
(over Lesson 14-2)
Solve. Use logical reasoning. Matt, Ann, and Joe
own a dog, a cat, and a bird. Ann’s pet does not
have 4 legs. Joe’s pet does not bark. Which pet
does Matt have?
A. cat
B. dog
C. bird
14
Multiply by One-Digit Numbers
(over Lesson 14-3)
Estimate. Round to the nearest ten.
37 × 9
A. 360
B. 36
C. 540
D. 5,400
14
Multiply by One-Digit Numbers
(over Lesson 14-3)
Estimate. Round to the nearest ten.
62 × 8
A. 1,283
B. 420
C. 1,284
D. 480
14
Multiply by One-Digit Numbers
(over Lesson 14-3)
Estimate. Round to the nearest hundred.
425 × 6
A. 12,000
B. 860
C. 2,400
D. 680
14
Multiply by One-Digit Numbers
(over Lesson 14-3)
Estimate. Round to the nearest hundred.
751 × 5
A. 4,000
B. 4,200
C. 3,600
D. 7,500
14
Multiply by One-Digit Numbers
(over Lesson 14-4)
Multiply.
2 × 41
A. 60
B. 40
C. 36
D. 82
14
Multiply by One-Digit Numbers
(over Lesson 14-4)
Multiply.
3 × 22
A. 33
B. 66
C. 55
D. 60
14
Multiply by One-Digit Numbers
(over Lesson 14-4)
Multiply.
4 × 12
A. 48
B. 128
C. 84
D. 488
14
Multiply by One-Digit Numbers
(over Lesson 14-4)
Multiply.
2 × 32
A. 64
B. 60
C. 54
D. 84
14
Multiply by One-Digit Numbers
(over Lesson 14-5)
Solve the problem. Mr. Franco has only cows
and chickens on his farm. He has 15 animals.
There are 40 legs. How many cows and
chickens does Mr. Franco have?
A. 5 cows and 10 chickens
B. 10 cows and 10 chickens
C. 2 cows and 15 chickens
D. 1 cow and 3 chickens
14
Multiply by One-Digit Numbers
(over Lesson 14-6)
Multiply.
17 × 4
A. 85
B. 38
C. 48
D. 68
14
Multiply by One-Digit Numbers
(over Lesson 14-6)
Multiply.
23 × 4
A. 92
B. 29
C. 81
D. 83
14
Multiply by One-Digit Numbers
(over Lesson 14-6)
Multiply.
38 × 2
A. 76
B. 67
C. 71
D. 118
14
Multiply by One-Digit Numbers
(over Lesson 14-6)
Multiply.
19 × 5
A. 54
B. 59
C. 51
D. 95
14
Multiply by One-Digit Numbers
(over Lesson 14-6)
Multiply.
26 × 3
A. 68
B. 86
C. 78
D. 144
14
Multiply by One-Digit Numbers
(over Lesson 14-7)
Multiply.
242 × 3
A. 688
B. 144
C. 328
D. 726
14
Multiply by One-Digit Numbers
(over Lesson 14-7)
Multiply.
174 × 4
A. 668
B. 122
C. 696
D. 124
14
Multiply by One-Digit Numbers
(over Lesson 14-7)
Multiply.
285 × 3
A. 558
B. 855
C. 640
D. 644
14
Multiply by One-Digit Numbers
(over Lesson 14-7)
Multiply.
1,391 × 5
A. 6,955
B. 6,240
C. 4,400
D. 5,955
This slide is intentionally blank.