Adding and Subtracting Decimals

What is 12.4 + 5.3

• 17.7

• 21

• 12.93

• 177

What is 20.24 + 7.46

• 27.610

• 20.986

• 27.7

• 2770

What 34.5 - 20.3

• 14.2

• 12.4

• 14

• 54.8

What 100.54 - 50.34

• 49.76

• 5020

• 50

• 50.2

What is 97.89 - 45.56

What is 36.12 + 41.83

If Tommy had a $10 bill and he spent $7.35 on candy at the store, how much change did he get back?

• $3.65

• $2.65

• $2.75

If Lilly bought 1 sticker for $0.50, a pencil for $0.75, and a notebook for $1.50, how much did she spend?

Where is the mistake?

• They didn't line up the decimals

• They didn't regroup right

• They added instead of subtracted

Where is the mistake?

• They didn't line up the decimals

• They didn't subtract correctly

• They didn't regroup correctly

• They added