unit 3 review miss bowen 4 th grade math. fact families use the numbers below to create a fact...

Unit 3 ReviewMiss Bowen4th Grade Math

Fact FamiliesUse the numbers below to create a fact family

8, 7, ___

1. ______x______=______

2. ______x______=______

3. ______/______=______

4. ______/______=______


8, 7, 56

1. 8 x 7= 56

2. 7 x 8=56

3. 56 / 7 = 8

4. 56 / 8 = 7


3, 9, ___

1. ______x______=______

2. ______x______=______

3. ______/______=______

4. ______/______=______


3, 9, 27

1. 3 x 9=27

2. 9 x 3=27

3. 27/3=9

4. 27/9 =3


10, 2, ___

1. ______x______=______

2. ______x______=______

3. ______/______=______

4. ______/______=______


10, 2, 20

1. 10 x 2= 20

2. 2 x 10= 20

3. 20 / 2= 10

4. 20 / 10= 2


6, 7, ___

1. ______x______=______

2. ______x______=______

3. ______/______=______

4. ______/______=______


6, 7, 42

1. 6 x 7= 42

2. 7 x 6= 42

3. 42 / 7 = 6

4. 42 / 6= 7


8, 11, ___

1. ______x______=______

2. ______x______=______

3. ______/______=______

4. ______/______=______


8, 11, 88

1. 11 x 8= 88

2. 8 x 11= 88

3. 88 / 8= 11

4. 88 / 11= 8


4, 9, ___

1. ______x______=______

2. ______x______=______

3. ______/______=______

4. ______/______=______


4, 9, 36

1. 4 x9=36

2. 9x4 =36

3. 36/9=4

4. 36/4=9


3, 8, ___

1. ______x______=______

2. ______x______=______

3. ______/______=______

4. ______/______=______


3, 8, 24

1. 3x8=24

2. 8x3=24

3. 24/8=3

4. 24/3=8

DivisionUse repeated subtraction to divide

14/2=?


14/2=?

14-2=12-2=10-2=8-2=6-2=4-2=2-2=0

7 subtraction signs

14/2=7


72/9=?


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


28/7=?


28/7=?

28-7=21-7=14-7=7-7=0

4 subtraction signs

28/7=4


36/6=?


36/6=?

36-6=30-6=24-6=18-6=12-6=6-6=0

6 subtraction signs

36/6=6


16/4=?


16/4=?

16-4=12-4=8-4=4-4=0

4 subtraction signs

16/4=4


42/7=?


42/7=?

42-7=35-7=28-7=21-7=14-7=7-7=0

6 subtraction signs

42/7=6


8/2=?


8/2=?

8-2=6-2=4-2=2-2=0

4 subtraction signs

8/2=4

Properties9/1=?

Properties9/1=?

9

Ones in division Whenever you divide by 1, the quotient is always the divided.

Properties33 x 1=?

Properties33 x 1=?

33

Identity property when a factor is multiplied by 1, the product is always that factor.

Properties5/____= 5

Properties5/____= 5

1

Ones in division Whenever you divide by 1, the quotient is always the divided.

Properties9x 8= 8x _____

Properties3 x 2 x 7=____

Properties3 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

Properties9x 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.

Properties4 x 2 x 7= 7 x 2 x____

Properties4 x 2 x 7= 7 x 2 x____

4

Associative property of multiplication the order of factors does not change the product

Properties4 x 0= _____

Properties4 x 0= _____

0

Zero Property of Multiplication- When a factor is multiplied by zero, the product is always zero.

MultiplesList the first five multiples

3


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


7


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


4


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


9


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


11


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

FactorsUse number charts to find all factors

30


30

1,30, 2, 15, 3, 10, 5, 6


12


12

1, 12, 2, 6, 3, 4


42


42

1, 42, 2, 21, 3, 14, 4, 6, 7


27


27

1, 27, 3, 9


36


36

1, 36, 2, 18, 3, 12, 6

Word ProblemsKevin 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 Understand-

Kevin- 5 feet, Rachel- Kevin +3, Daniel- half of Rachel

More than 15?

Plan- feet carried in total- addition

Solve- Kevin 5Rachel (5+3) 8Daniel (8/2) + 4____________________17

17> 15

Yes it is reasonable

Word ProblemsJosh 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?

Solve-

14/2= $7 $7 x 3= 21 21<50

$21 < $50 No, it is not reasonable to say that they will make more than $50

Word ProblemsJavier’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 ProblemsBrittany 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 ProblemsMissy 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 ProblemsUnderstand

Missy – Jerry x 3 (21)Kim - Jerry + 9

PlanJ x 3= 21J +9= K

Solve21/3 = 77+9= 16

Kim= 16 points

Word ProblemsJulie earned $25. This is 5 times more

than the amount Lisa earned. How much did Lisa earn?

Word ProblemsUnderstand

Julie =$25Lisa x 5= Julie

PlanJulie ($25)/ 5= Lisa

Solve$25/ 5= $5

Lisa= $5

unit 3 review miss bowen 4 th grade math. fact families use the numbers below to create a fact...

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