Decimal Model Addition and Subtraction

• 11.27

• 22.37

Does this model represent addition or subtraction?

• addition

• subtraction

Subtract 9.43 − 3.34

• 12.77

• 6.09

• 6.90

• 60.09

• 8.6

• 7.6

• 2.94

• 1.06

Lia and James went to the movies. The tickets are $3.00 each.  Lia bought popcorn and a slushy for $8.50 together. James bought a slushy and nachos $12.00 together. How much money did they spend total?

• 26.50

• 2.650

• 3.00

• 53.65

True or false: The blocks show the decimal numbers of 6.47 + 3.26.

• False 

• True 

Which of the decimals is equivalent to the value represented by the hundreds grid?

• 0.37

• 0.38

• 0.83

• 0.86

Find the difference.

17.82 - 9.27 =

• 8.55

• 8.055

• 85.5

• 8.05

0.92+0.67=

• 0.159

• 1.059

• 1.59

• 0.0159