Unit 3 Review

Rule Tables

100

Find the rule: 

         IN           OUT

         2              5

         5              8

         7              10

Plus 3 or Add 3

200

Fill in the chart:

Rule: Subtract 4 OR Minus 4

     IN        OUT

     29          ?

     17         13

     10          6

25

300

Find the rule:

  IN    OUT

 13        2

 25       14

 37       26

Minus 11 OR Subtract 11

400

Fill in the chart: 

Rule: Multiply by 4 

    IN         OUT

    3            12

    5             ?

    7            28

20

Estimate

100

42+13

40 + 10 = 50

200

127 -  62

130 - 60 = 70

300

643 + 987=

600 + 1,000= 1,600

OR

640 + 990 = 1,540

400

361- 179 =

400-200=200

OR 

360-180=180

Arrays

100

What is the multiplication sentence for the array?

X X X X 

X X X X

X X X X

3X4=12

200

Draw an array for the multiplication sentence.

6x3=18

X X X

X X X

X X X

X X X

X X X

X X X

300

Write the multiplication sentence for the array.

X X X X X X 

X X X X X X

X X X X X X

X X X X X X

4X7=28

400

Draw an array for the multiplication sentence.

 7x7=49

X X X X X X X

X X X X X X X

X X X X X X X

X X X X X X X

X X X X X X X

X X X X X X X

X X X X X X X

Commutative Property

100

Write the commutative property of the fact. 

4x7=28

7x4=28

200

Write the commutative property of the fact. 

8x9=72

9x8=72

300

Write the commutative property of the fact. 

1x754=754

754x1=754

400

Write the commutative property of the fact. 

69x7=483

7x69=483