Add & Subtract Decimal Quiz

What is the rule for adding or subtracting decimals?

• Add first

• Line up the decimals first, then fill in with zeros.

• Move the decimal to the right the total amount of numbers after the decimal.

• Subtract

5.4 + 0.5 =

• 4.5

• 4.9

• 5.9

• 5.8

6.70 - 2.33 =

• 4.43

• 4.4

• 4.37

• 4.47

3.3 + 2.22=

• 5.52
• 5.55
• 5.77
• 5.4

Jim earns $22.50, $14.75, and $8.50 on three different days.  How much did he earn in all? 

• $28.75
• $45.25
• $45.75
• 457.50

On three different days at her job, Sara earned $27.50, $33, and $49.75.  She needs to earn $100 to buy a desk for her computer.  If she buys the desk, how much money will she have left over? 

• 209
• 9
• 102.50
• 10.25

2.16 + 12. 48

• 14.54
• 14.64
• 14.62
• 15.00