Topic 8 Math Review

Topic 8 Math Review

by Nicole Heitland

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Multiple Choice

Which shows the commutative property of addition? 

• 28 + 41 = 41 + 28

• 50 + 0 = 50

• (31 + 5) + 20 = 31 + (5 + 20)

Multiple Choice

Which shows the identity (zero) property of addition? 

• 28 + 41 = 41 + 28

• 50 + 0 = 50

• (31 + 5) + 20 = 31 + (5 + 20)

​Parentheses show what to do first!!!

Multiple Choice

Which shows the associative property of addition? 

• 28 + 41 = 41 + 28

• 50 + 0 = 50

• (31 + 5) + 20 = 31 + (5 + 20)

Fill in the Blanks

Enter the missing number 

(41 + 5)  + 22 =

+ (5 + 22)

​Rounded numbers tell us ABOUT how much or ABOUT how many. We round when we do not need an exact number.

Fill in the Blanks

ROUND to the nearest TEN to estimate.

123 + 241 =

Multiple Select

Choose ALL the equations that are true. 

• 0 + 334 = 334

• 510 + 119 = 119 + 510

• (98 + 167) + 220 = (167 + 220) = 98