Transcript Unit 3 Review - hilarygrade4

Unit 3 Review
Miss Bowen
4th Grade Math
Fact Families
Use the numbers below to create a fact family
8, 7, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact Families
Use the numbers below to create a fact family
8, 7, 56
1. 8 x 7= 56
2. 7 x 8=56
3. 56 / 7 = 8
4. 56 / 8 = 7
Fact Families
Use the numbers below to create a fact family
3, 9, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact Families
Use the numbers below to create a fact family
3, 9, 27
1. 3 x 9=27
2. 9 x 3=27
3. 27/3=9
4. 27/9 =3
Fact Families
Use the numbers below to create a fact family
10, 2, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact Families
Use the numbers below to create a fact family
10, 2, 20
1. 10 x 2= 20
2. 2 x 10= 20
3. 20 / 2= 10
4. 20 / 10= 2
Fact Families
Use the numbers below to create a fact family
6, 7, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact Families
Use the numbers below to create a fact family
6, 7, 42
1. 6 x 7= 42
2. 7 x 6= 42
3. 42 / 7 = 6
4. 42 / 6= 7
Fact Families
Use the numbers below to create a fact family
8, 11, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact Families
Use the numbers below to create a fact family
8, 11, 88
1. 11 x 8= 88
2. 8 x 11= 88
3. 88 / 8= 11
4. 88 / 11= 8
Fact Families
Use the numbers below to create a fact family
4, 9, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact Families
Use the numbers below to create a fact family
4, 9, 36
1. 4 x9=36
2. 9x4 =36
3. 36/9=4
4. 36/4=9
Fact Families
Use the numbers below to create a fact family
3, 8, ___
1. ______x______=______
2. ______x______=______
3. ______/______=______
4. ______/______=______
Fact Families
Use the numbers below to create a fact family
3, 8, 24
1. 3x8=24
2. 8x3=24
3. 24/8=3
4. 24/3=8
Division
Use repeated subtraction to divide
 14/2=?
Division
Use repeated subtraction to divide
 14/2=?
 14-2=12-2=10-2=8-2=6-2=4-2=2-2=0
 7 subtraction signs
 14/2=7
Division
Use repeated subtraction to divide
 72/9=?
Division
Use repeated subtraction to divide
 72/9=?
 72-9=63-9=54-9=45-9=36-9=27-9=18-9=9-9=0
 8 subtraction signs
 72/9=8
Division
Use repeated subtraction to divide
 28/7=?
Division
Use repeated subtraction to divide
 28/7=?
 28-7=21-7=14-7=7-7=0
 4 subtraction signs
 28/7=4
Division
Use repeated subtraction to divide
 36/6=?
Division
Use repeated subtraction to divide
 36/6=?
 36-6=30-6=24-6=18-6=12-6=6-6=0
 6 subtraction signs
 36/6=6
Division
Use repeated subtraction to divide
 16/4=?
Division
Use repeated subtraction to divide
 16/4=?
 16-4=12-4=8-4=4-4=0
 4 subtraction signs
 16/4=4
Division
Use repeated subtraction to divide
 42/7=?
Division
Use repeated subtraction to divide
 42/7=?
 42-7=35-7=28-7=21-7=14-7=7-7=0
 6 subtraction signs
 42/7=6
Division
Use repeated subtraction to divide
 8/2=?
Division
Use repeated subtraction to divide
 8/2=?
 8-2=6-2=4-2=2-2=0
 4 subtraction signs
 8/2=4
Properties
 9/1=?
Properties
 9/1=?
 9
 Ones in division Whenever you divide by 1, the
quotient is always the divided.
Properties
 33 x 1=?
Properties
 33 x 1=?
 33
 Identity property when a factor is multiplied by 1, the
product is always that factor.
Properties
 5/____= 5
Properties
 5/____= 5
 1
 Ones in division Whenever you divide by 1, the
quotient is always the divided.
Properties
 9x 8= 8x _____
Properties
 3 x 2 x 7=____
Properties
 3 x 2 x 7=____
 3x 2= 6 x 7 = 42 or 7x 2= 14 x 3= 42
 Associative property of multiplication the order of
factors does not change the product
Properties
 9x 8= 8x _____
 9
 Commutative Property of Multiplication- the order of
factors does not change the product.
Properties
 ____ / 12=0
Properties
 ____ / 12=0
 O
 Zeroes in division When you divide zero by any
number, the quotient is always zero.
Properties
 4 x 2 x 7= 7 x 2 x____
Properties
 4 x 2 x 7= 7 x 2 x____
 4
 Associative property of multiplication the order of
factors does not change the product
Properties
 4 x 0= _____
Properties
 4 x 0= _____
 0
 Zero Property of Multiplication- When a factor is
multiplied by zero, the product is always zero.
Multiples
List the first five multiples
3
Multiples
List the first five multiples
3
 3 x 0= 0
 3 x 1= 3
 3 x 2= 6
 3 x 3= 9
 3 x 4= 12
 0,3,6,9,12
Multiples
List the first five multiples
7
Multiples
List the first five multiples
7
 7 x 0= 0
 7 x 1= 7
 7 x 2= 14
 7 x 3= 21
 7x 4= 28
 0, 7, 14, 21, 28
Multiples
List the first five multiples
4
Multiples
List the first five multiples
4
 4 x 0= 0
 4 x 1= 4
 4 x 2= 8
 4 x 3= 12
 4 x 4= 16
 0, 4, 8, 12, 16
Multiples
List the first five multiples
9
Multiples
List the first five multiples
9
 9 x 0= 0
 9 x 1= 9
 9 x 2= 18
 9 x 3= 27
 9 x 4= 36
 0, 9, 18, 27, 36
Multiples
List the first five multiples
11
Multiples
List the first five multiples
11
 11 x 0= 0
 11 x 1= 11
 11 x 2= 22
 11 x 3= 33
 11 x 4= 44
 0, 11, 22, 33, 44
Factors
Use number charts to find all factors
30
Factors
Use number charts to find all factors
30
1,30, 2, 15, 3, 10, 5, 6
Factors
Use number charts to find all factors
12
Factors
Use number charts to find all factors
12
1, 12, 2, 6, 3, 4
Factors
Use number charts to find all factors
42
Factors
Use number charts to find all factors
42
1, 42, 2, 21, 3, 14, 4, 6, 7
Factors
Use number charts to find all factors
27
Factors
Use number charts to find all factors
27
1, 27, 3, 9
Factors
Use number charts to find all factors
36
Factors
Use number charts to find all factors
36
1, 36, 2, 18, 3, 12, 6
Word Problems
 Kevin can carry a basket 5 feet. Rachel can
carry it 3 feet further than Kevin. Daniel can
carry the basket half the distance that
Rachel can. Is it reasonable to say that they
can carry it 15 feet with each person only
taking one turn?
Word Problems
 UnderstandKevin- 5 feet, Rachel- Kevin +3, Daniel- half of Rachel
More than 15?
 Plan- feet carried in total- addition
 Solve- Kevin
Rachel (5+3)
Daniel (8/2)
5
8
+
4
____________________
17
 17> 15
Yes it is reasonable
Word Problems
 Josh and Anthony have a lemonade stand.
They charge $1 for 2 cups of lemonade.
They sell 14 cups each afternoon. Is it
reasonable to say that Josh and Anthony
earned more than $50 after 3 afternoons?
Word Problems
 Understand- $ 1 for 2 cups
14 cups each afternoon
3 afternoons> $50?
 Plan- 14/2=S
S x 3= N
N>$50?
 Solve14/2= $7
$7 x 3= 21
21<50
 $21 < $50  No, it is not reasonable to say that they will
make more than $50
Word Problems
 Javier’s grandmother lives 120 miles away.
It takes 1 hours to travel 40 miles by train. If
Javier leaves at 7 a.m., is it reasonable to
say that he will arrive at his grandmother’s
by 9 a.m.?
Word Problems
 Understand
 grandmother= 120 miles away
 1 hour for 40 miles
 Leaves at 7 a.m.  there by 9 a.m.?
 Plan
 120/40= T
 7+T= N
 N earlier than 9?
 Solve
 120- 40= 80-40=40-40= 0 (3)
 7+3=10 a.m.
 10 a.m. is not before 9 a.m.
 It is not reasonable to say that they will be there before 9 a.m.
Word Problems
 Brittany wants to make cookies for the
whole fourth grade. One batch makes 12
cookies. There are 68 fourth graders. Is it
reasonable to say that Brittany will need
more than two batches of cookies?
Word Problems
 Understand
 12 cookie per batch
 68 students
 2 batches enough?
 Plan
 12 x 2= N
 N>68?
 Solve
 12 x 2= 24
 24< 68
 It is not reasonable to say that 2 batches will make enough cookies
for the 4th grade students.
Word Problems
 Missy earned three times as many points as
Jerry. Kim earned 9 point more than Jerry.
Missy earned 21 points. How may points did
Kim earn?
Word Problems
 Understand
 Missy – Jerry x 3
 Kim - Jerry + 9
 Plan
 J x 3= 21
 J +9= K
 Solve
 21/3 = 7
 7+9= 16
 Kim= 16 points
(21)
Word Problems
 Julie earned $25. This is 5 times more than
the amount Lisa earned. How much did Lisa
earn?
Word Problems
 Julie earned $25. This is 5 times more than
the amount Lisa earned. How much did Lisa
earn?
Word Problems
 Understand
 Julie =$25
 Lisa x 5= Julie
 Plan
 Julie ($25)/ 5= Lisa
 Solve
 $25/ 5= $5
 Lisa= $5