1.1 Properties

In a flea circus, 12 fleas pull carts, 23 fleas ride on tiny bicycles, and 18 fleas sit on seesaws. You can add 12 + 23 + 18 to find the total number of fleas. Which equation shows the Commutative Property of Addition?

• 12 + 23 + 18 = 23 + 12 + 18

• 12 + 23 + 18 = (12 + 23) + 18

• 12 + 23 + 18 = 12 + (23 + 18)

• 12 + 23 + 18 = 35 + 18

Tags

CCSS.7.NS.A.1D

Complete the equation.

15 + (25 + 27) = (15 + _____) + 27

• 40

• 25

• 10

• 52

Tags

CCSS.1.OA.B.3

Nick read 24 pages in his book one day, 29 pages the next day, and 16 pages on the third day. Megan read 26 pages for three days in a row.

Who read more pages?

How many more?

• Megan read 9 more pages.

• Megan read 11 more pages.

• Nick read 9 more pages.

• Megan read 11 more pages.

Tags

CCSS.3.OA.D.8

Canoes rent for $29 per day. Which expression can be used to find the cost in dollars of renting 6 canoes for a day?

• (6 + 20) + (6 + 9)

• (6 × 20) + (6 × 9)

• (6 + 20) × (6 + 9)

• (6 × 20) × (6 × 9)

Tags

CCSS.6.NS.B.4

103 + 21 = ____+ 103

Complete the equation and identify the property used.

• 21; Commutative Property

• 21; Associative Property

Tags

CCSS.1.OA.B.3

16 + (70 + 8) = (16 + ____ )+ 8

Complete the equation and identify the property used.

• 70; Commutative Property

• 70; Associative Property

Tags

CCSS.1.OA.B.3

4 × 47

Find the product.

Tags

CCSS.4.NBT.B.5

3 × 40 × 6

Find the product.

Tags

CCSS.3.NBT.A.3

34 + 21 + 84 + 7

Find the sum.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Maggie’s class bought three books at the book fair. The books cost $15, $9, and $12.

Apply properties to find how much the class spent in all.

Tags

CCSS.7.NS.A.1D