Adding & Subtracting Decimals

Find the sum. 9 + 12.36 = ?

• 21.36

• 12.45

Find the difference. 10 - 4.5 = ?

• 3.5

• 5.5

Find the difference. 100 - 28.93 = ?

• 27.93

• 71.17

Find the difference. 14.5 - 12.06 = ?

• 2.44

• 2.56

Do the decimals have to be lined up when you're adding and subtracting?

• Yes

• No

Gina competed in a gymnastics competition.  Her total score for the balance beam and the vault was 16.75.  She scored 9.3 on the vault.  How much did she score for the balance beam?

• 7.45
• 7.54
• 7.045
• 7.054

Ellie buys some craft supplies.  The supplies cost a total of $6.43.  She pays with a $20 bill.  How much change does she receive?

• 13.57
• $13.57
• $13.75
• 13.75

5.57 - 1.8

• 3.77
• 4.77
• 2.98
• 3.76

Nathan and his uncle paid $9.50 for tickets to a bike race.  They bought one adult's ticket and one child's ticket.  The adult's ticket cost $5.75.  What was the cost of Nathan's ticket?

• 3.75
• $2.95
• $3.75
• $3.50

Find the sum 27.63 + 15.04

• 42.77
• 42.67
• 40.67
• 41.78