Money Math
Multiplication Facts
What is Double?
Rounding
Properties of Addition/Multiplication
100

   $6.78

+ $9.31

_______

$16.09

100

3 x 2=

6

100

What is double 10?

20

100

What is 18 rounded to the nearest ten?

20

100

What property does this represent 5+6 = 6+5?

Commutative 

200

  $11.99

+ $7.34

_______

$19.33

200

5 X 7 =

35

200

What is double 22?

44

200

What is 43 rounded to the nearest ten?

40

200

What property is shown in (8 X 9)  X 6 = 9 X (6 X 8)?

Associative

300

 $23.41

+$8.99

_______

$32.40

300

6 X 8 =

48

300

What is double 31?

62

300

What is 553 rounded to the nearest hundred?

600

300

What property is shown in this problem:

 8 X 9 = 9 X 8?

Commutative

400

 $58.67

- $7.69

_______

$50.98

400

9 X 7 =

63

400

What is double 56?

112

400

What is 902 rounded to the hundred ten?

900

400

What problem is shown here: 

6 + (7 + 8) = 8 + (6 + 7)?

Associative 

500

 $90.00

- $8.78

_______

$81.22

500

12 X 5 =

60

500

What is double 77?

154

500

What is 2,489 rounded to the nearest thousand?

2,000

500

What property is shown here: 5 + 0 = 5?

Identity 

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