Multiply and Divide Decimals

7.9 ×  3.4 = 

• 268.6
• 26.86
• 2.686
• 2686

9.2 × 5.6 = 

• 51.52
• 5.152
• 515.2
• 5152

Do you have to line up the decimals when you multiply?

• Yes
• No

 Aretha runs a marathon in 3.25 hours. Neal takes 1.6 times as long to run the same marathon. How many hours does it take Neal to run the marathon?

• 5.2 hours
• 6.2 hours
• 3.2 hours
• 4.2 hours

Marbles cost $0.50 per ounce. A box of marbles at the warehouse store contains 100 ounces of marbles. What is the cost of the box of marbles?

• $5
• $50
• $500
• $5,000

24.3 x 0.8

• 1.944
• 19.44
• 22.32
• 223.2

9.24 ÷ 0.7 

• 4.5
• 13.1
• 12.1
• 13.2

1.08 ÷ 4

• 4.32
• 0.27
• 0.72
• 4.23

4.78 x10

• 4.78
• 47.8
• 478
• .478

2.8 ÷ 4

• 7
• 0.7
• 0.07
• 70

Tags

CCSS.5.NBT.B.7