Transcript 1-2

1-2 Divide Multi-Digit Whole Numbers
I CAN divide using a multi-digit whole
number divisor.
I CAN interpret the quotient and
remainder in a real-world setting.
1-2 Divide Multi-Digit Whole Numbers
Vocabulary
dividend
divisor
1-2 Divide Multi-Digit Whole Numbers
To divide multi-digit numbers you can use long
division.
The number to be divided is the dividend.
The divisor is the number by which the dividend is
divided.
____________________
480,000)25,920,000
Divisor
Dividend
1-2 Divide Multi-Digit Whole Numbers
Example 1: Finding Group Size Using Division
There are 435 members of the United States
House of Representatives. It the member
where split into 15 equal-sized committees,
how many representatives would be in each
committee?
Step 1: Decide where to place the first digit in the
quotient.
x
15) 435
no You cannot divide 4 by 15.
x
15) 435
yes You can divide 43 by 15.
So, place the first digit of the quotient in the tens place.
1-2 Divide Multi-Digit Whole Numbers
Continued: Example 1
Step 2: Divide the tens. 15 ) 43
2
15) 435
- 30
13
Multiply. 15 x 2
Subtract. 43 – 30
Compare.13 < 15
1-2 Divide Multi-Digit Whole Numbers
Continued: Example 1
Step 3: Divide the ones. 15 ) 435
29
Multiply. 15 x 9
15) 435
- 30
135
- 135
Subtract 135-135
0
So, each committee will have 29 representatives.
1-2 Divide Multi-Digit Whole Numbers
You Try! Example 1
A tour operator is organizing 442 people on
buses for a day trip. If they wish to separate
the people equally on 13 buses, how many
people are on each bus?
Step 1: Decide where to place the first digit in the
quotient.
x
13) 442
no You cannot divide 4 by 13.
x
13) 442
yes
You can divide 44 by 13.
So, place the first digit of the quotient in the tens place.
1-2 Divide Multi-Digit Whole Numbers
Continued: You Try! Example 1
Step 2: Divide the tens. 13 ) 44
3
Multiply. 13 x 3
13) 442
Subtract. 44 – 39
- 39
Compare.5 < 13
5
Step 3: Divide the ones. 13 ) 442
34
13) 442
- 39
52
-52
Multiply. 13 x 4
Subtract 52-52
0
So, each bus will have 34 people.

1-2 Divide Multi-Digit Whole Numbers
Example 2: Finding Numbers of Groups Using
Division
A store manager has 224 pairs of jeans to stock on the
store’s shelves. If each shelf can hold 18 pairs of jeans, how
many shelves does the manager need to stock all the pairs
of jeans?
12
18) 224
- 18
44
- 36
8
1-2 Divide Multi-Digit Whole Numbers
Continued: Example 2
Twelve shelves will not be enough hold all the
jeans. Another shelf will be needed to hold the
remaining 8 jeans. The quotient must be
rounded up to the next whole number.
So, the manager will need 13 shelves.
1-2 Divide Multi-Digit Whole Numbers
You Try! Example 2
A store manager has 338 pairs of jeans
to stock on the store’s shelves. If each
shelf can hold 24 pairs of jeans, how
many shelves does the manager need to
stock all the pairs of jeans?
14
24) 338
- 24
98
- 96
2
1-2 Divide Multi-Digit Whole Numbers
Continued: You Try! Example 2
Fourteen shelves will not be enough hold all the
jeans. Another shelf will be needed to hold the
remaining 2 jeans. The quotient must be
rounded up to the next whole number.
So, the manager will need 15 shelves.
1-2 Divide Multi-Digit Whole Numbers
CAN YOU divide using a multi-digit whole
number?
CAN YOU interpret the quotient and
remainder in a real-world setting.
1-2 Divide Multi-Digit Whole Numbers
Lesson Quiz
1. On one weekend, during fall leaf viewing
season, there were 4,158 visitors on 77 buses in
the area. How many visitors were on each bus?
54 Visitors
2. A nail manufacturer produces 8,625 nails in a
day. How many boxes containing 75 nails can
the manufacturer pack from that number of
115 boxes
nails?
3. Hakeem works 36 hours last week and earned a
total of $486.00. How much did Hakeem earn
per hour?
$13.50
1-2 Divide Multi-Digit Whole Numbers
HOMEWORK