Word Problems
Distributive / Associative Property
Unknown Number
Multiples of 10
Solve
100

There were 7 crabs on the beach. Each crab had 2 claws. How many claws are there in all?

14 claws

100

Write an equation to show the distributive property for 4 x 6?

4 x 6   =  (4 x 3) + (4 x 3)

Or

4 x 6   =  (4 x 4) + (4 x 2)

Or

4 x 6   =  (4 x 5) + (4 x 1)

100

Find the unknown number in the equation:

a  x  5  =  20

a  =  4

100

3  x  20  =

60

100

5 x 7 =

35
200

Holly practiced the piano for 5 days last week.  She practiced for 3 hours each day.  How many hours did Holly practice the piano last week?

15 hours

200

Which equation below shows the distributive property for 3 x 9?

3 x 9  =  (3 x 4) + (3 x 5)

Or

3 x 9  =  (3 x 3) + (3 x 6)

Or

3 x 9  =  (3 x 2) + (3 x 7)

200

Find the unknown number in the equation:

3   x   b   =   21

b  =  7

200

6  x  40  =

240

200

8 x 4 =

32
300

Josh has 6 bags. Each bag has 7 toy cars. How many toy cars does Josh have in all?

42 cars
300

Write the equation that shows the Associative Property for 5 x ( 2 x 1)?

(5 x 2) x 1

300

Find the unknown number in the equation:

2   x   c   =   18

c   =   9

300

8  x  60  =

480

300

Solve:

3 x (4 x 2)  =

24

400

Kevin has 4 packs of Pokemon cards. Each pack has 30 cards.  Carlos has 150 Pokemon cards.

Does Kevin have more Pokemon cards than Carlos, the same number of Pokemon cards as Carlos, or fewer Pokemon cards than Carlos?

Kevin has fewer Pokemon cards than Carlos

120 < 150

400

Write the equation that shows the Associative Property for 7 x (3 x 6)?

(7 x 3) x 6

400

Find the unknown number in the equation:

3  x  4  =  12  x  d

d  =  1

400

7  x  70  =

490

400

Solve:

7 x (3 x 3)  = 

63

500

Sammy made 6 trays of cookies.  Each tray held 20 cookies.  Chloe made 80 cookies.  

Did Sammy make more cookies than Chloe, the same number of cookies as Chloe, or fewer cookies than Chloe?

Sammy made more cookies than Chloe.

120 > 80

500

Write the equation that shows the Associative Property for (9 x 4) x 2?

9 x (4 x 2)

500

Find the unknown number in the equation:

8  x  5  =  4  x  e

e  =  10

500

6  x  90  =

540

500

Solve:

(2 x 5) x 9 

90