Unit 10 Review

Which of the following can be used to solve the expression 4 x 3 x 6?

• 12 x 6

• 25 x 4

• 2 x 10

• 4 x 18

4 x 5 x 2 = ?

• 28

• 40

• 100

• 20

How can you use doubles to find the product of 8 x 7?

• 4 x 7 + 4 x 7

• 2 x 7 + 6 x 7

• 8 x 7 + 8 x 7

• 8 x 7 x 7

How can you use doubles to find the product of 6 x 5?

• 6 x 5 x10

• 6 X 5 + 6 x 5

• 2 x 5 + 2 x 5

• 3 x 5 + 3 x 5

2 x 70 is the same as 2 x ___ tens

5 x 30 can also be written as ___ x ___ tens

Fill in the blanks to solve the equation 8 x 50 =

(blank) x (blank) tens = (blank) tens

So, 8 x 50 = (blank)

How can you decompose the multiple of 10 to solve for 3 x 90?

• 3 x 9 x 10

• 1 x 3 x 90

• 2 x 90

• 3 x 90