Show:
Properties of Addition
Variables
Estimation
Money
Add and Subtract
100

Which property is demonstrated?

(5+5)+3  =  5+(5+3)

Associative Property

100

What does v equal?

v+7=10

v=3

100

Using rounding to the highest place numbers have in common to estimate:

257 + 89 =

350

100

Solve this money problem:

$3.56 + $5. 70 =

$9.26

100

714 + 39 =

753

200

Which property is demonstrated?

30 + 0 = 30

Identity Property

200

What does m equal?

20-m=14

m=6

200

Using rounding to the highest place numbers have in common to estimate:

4, 702 + 28 =

4, 730

200

Solve this money problem:

$8.03 - $2.56 =

$5.47

200

528 - 357 =

171

300

Which property is demonstrated?

6+7 = 7+6

Commutative Property

300

What does x equal?

50+x=150

x=100

300

Using rounding to the highest place numbers have in common to estimate:

57, 309 + 21, 748 =

80, 000

300

Solve this money problem:

$85.31 + $4.96 =

$90.27

300

2426 + 3021 =

5447

400

Which property is demonstrated?

4+6+5 = 6+4+5

Commutative Property

400

What does Z equal?

Z x 4 = 32

Z=8

400

Using rounding to the highest place numbers have in common to estimate:

40, 931 - 2, 603 =

38, 000

400

Solve this money problem:

$578.01 + $432.66 =

$1,010.67

400

What equation would you use to check this problem?

7,352 + 2,014 =

9,366 - 2,014

500

Which property is demonstrated?

4+(5+7) = (4+5)+7

Associative Property

500

What does n equal?

n+n+n=21

n=7

500

Using rounding to the highest place numbers have in common to estimate:

49, 520 - 8, 631 =

41, 000

500
Solve this money problem:

$409.21 - $396.07


$13.14

500

What equation would you use to check this problem:

5,127 - 3,562 =

1,565 + 3,562 =