Multi Digit Operations With Decimals

When you multiply two decimal numbers, you line up the digits not the decimal points.

• True

• False

When you add two decimal numbers, you do not need to line up the decimal points.

• True

• False

Which statement about 6.45 ÷ 0.5 is true?

• The dividend is a whole number.

• The divisor should become 5 before you divide

• The product does not have a hundreds place.

Lynzi earns $8.95 per hour.  This week she worked 7.5 hours.  How much did she earn this week?

• $67.125

• $67.12

• $67.13

• $68.00

Lauren bought 22 boxes of crayons for $28.16. How much did she pay for each box of crayons?

• $1.28

• $6.16

• $12.80

• $0.13

Justin made $46 mowing lawns during the summer. He went to the movies and spent $16.54, the arcade and spent $8.50, and the comic book store and spent $12.98. How much money does he have left?

• $7.98

• $5.48

• $6.92

• $8.21

On Tuesday, Mr. McGee bought a new video game system for $345.67. On Friday, the system went on sale for $299.99. How much money could Mr. McGee have saved if he would have bought the system on Friday?

• $44.98

• $154.23

• $645.66

• $45.68

Josh bought one T-shirt for $7.90 and another T-shirt for $12.40. What is the total amount he spent?

• $4.00

• $4.50

• $20.30

• $20.00

Patrick had a board that was 54 inches long. He cut off 22.5 inches for a project. How many inches of the board remain?

• 30 in.

• 31.5 in.

• 32.5 in.

• 40 in.

• 0.18

• 0.018

• 1.8

• 18