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CanadaON
Grade 4

Distributive property for multiplication (10x10)

Interactive practice questions

Use the fact that $9\times10=90$9×10=90 and $9\times7=63$9×7=63 to answer the following questions.

a

Fill in the blank to make the statement true.

$9\times17=9\times\left(\editable{}+7\right)$9×17=9×(+7)

b

Fill in the blanks to make the statement true.

$9\times\left(10+7\right)=9\times\editable{}+9\times\editable{}$9×(10+7)=9×+9×

c

Use the answers from part (a) and part (b) to find $9\times17$9×17.

Easy
2min

We want to use the distributive property to rewrite $2\times19$2×19 as easier multiplications.

Easy
< 1min

We want to use the distributive property to rewrite $4\times16$4×16 as easier multiplications.

Easy
< 1min

We want to use the distributive property to rewrite $6\times12$6×12 as easier multiplications.

Easy
< 1min
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Outcomes

4.PA2.04

Identify, through investigation, and use the distributive property of multiplication over addition to facilitate computation with whole numbers (e.g.,“I know that 9 x 52 equals 9 x 50 + 9 x 2. This is easier to calculate in my head because I get 450 + 18 = 468.”).

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