Arrays
Inverse Equations & Unknown numbers
Properties
Story problems
100

3 x 4

****

****

****

100

Inverse Equation between multiplication and division:

4 x 5 = 20

20 divided by 5 = 4

100

1 x 0= ____

0

100

The store had flowers on sale for $5 each. If you bought 6 flowers how much would you spend?

$30

200

What must an array have? 

equal groups

200

Inverse Equation of multiplication and division:

8 x 5 = 40

40 divided by 5 equals 8

200
12 x 1 = ____

12

200

Jack took 12 quarters from his bank. If he put them into 4 equal stacks how many would be in each group?

3

300

2 x 3

***

***

300

2 x 9 = 20- ____

2
300

Which expression is equal to 2 x 8 using the commutative property 

8 x 2

300

Cathy has a length of 3 cards and a width of 2 cards. If Cathy wants to find the area using cards what will she do? 

length x width = area



6

400

3 x 0

ZERO

400

2 x 5 = 3 + ___

7

400

Which expression is equal to 5 x (3 x 2) using the associative property

(5 x 3) x 2

400

Kelly's desk has a length of 5 sticky notes and width of 3 sticky notes. What is the area in sticky notes? 


15 sticky notes

500

Fill in the blank, solve using an array:

****

****

_____ x 4= 8

2

500

Find the inverse equation to show the relationship between multiplication and division:

2 x 3 = 6


6 divided by 3 equals 2

500

Find the missing number using the distributive property:

(5 x 4) + (5 x 2) = 5 x (___ +2)

(5 x 4) + (5 x 2) = 5 x (4 +2)

500

The store was selling packs of chocolates for $14 dollars each. If you bought 3 packs, how much would you spend?

$42