Adding and Subtracting Decimals with Few Non-Zero Digits

Susan ordered a kid’s drum set for $79.99 and a keyboard for $54.99 for her twin sons. How much did Susan spend in total on the musical instruments?

• $134.98

• $135

• $25

Kennedy went to shopping she had $30. She bought a shirt for $10.00, 2 bottles of finger nail polish for $1.68 each, and a eye shadow for $6. How much money did she get back from the cashier?

• $19.36

• $10.64

• $11.36

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 problem is represented by this model? BE CAREFUL!

• 0.27 - 0.9

• 0.18 + 0.09

• 0.9 + 0.18

• 0.27 - 0.09

Which decimal represents the amount shaded on the models?  

• 183

• 1.83

• 1.083

• 0.83

Which addition expression adds up to 7.29?

• 7.00 + 7.29

• 4.00 + 0.29

• 4.62 + 9.00

• 4.18 + 3.11