# Set12: Sums and Differences with Decimals

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1. Write two and sixty-seven hundredths in standard form.
2.67
2. Write three and five tenths in standard form.
3.5
3. Write 1.53 in word form.
One and fifty-three hundredths
4. A box of Jell-O pudding weighs 3.5 oz. What is that weight when rounded to the nearest whole number?
4 oz.
5. Find the sum of 0.51 and 0.76.
1.27
6. Find the difference of 1.33 and 0.21.
1.12
7. What is 34.87 rounded to the nearest one (whole number)?
35
8. What is 245,689 rounded to the nearest thousand?
246,000
9. Jayden kicked a soccer ball 12.87 meters. What is 12.87 rounded to the nearest tenth?
12.9 meters
10. The test tube contained 5.6 mL of water and 2.3 mL of vinegar.  What is the best estimate of the total amount of liquid in the test tube?
8 mL
11. Estimate 12.8 + 12.8.
26
12. Estimate 5.3 + 8.9.
14
13. Estimate 599 + 488.
1100
14. Estimate 34 + 61.
90
15. Which statement about rounding decimals is correct?  a. The number 4.023 rounded to the nearest hundredth is 4.03.  b. The number 4.023 rounded to the nearest hundredth is 4.02.
b.  The number 4.023 rounded to the nearest hundredth is 4.02.
16. Use rounding to estimate 4.5 + 4.5.
10
17. Use front-end estimation to estimate 4.5 + 4.5.
9
18. Use front-end estimation, estimate 2.1 + 3.2.
5
19. Estimate 4.9 - 2.3.
5 - 2 = 3
20. Estimate 9.9 - 2.7.
10 - 3 = 7
21. Estimate 12.3 - 8.9.
12 - 9 = 3
22. Use rounding to estimate 4.7 + 3.2 + 4.7.
5 + 3 + 5 = 13
23. Use rounding to estimate \$1.99 + \$2.67.
\$2.00 + \$3.00 = \$5.00
24. Use rounding to estimate \$1.68 + \$1.68 + \$1.68.
\$2 + \$2 + \$2 = \$6
25. Use rounding to estimate \$4.19 +
\$ 2.88.
\$4 + \$3 = \$7
 Author: jobonnette ID: 309848 Card Set: Set12: Sums and Differences with Decimals Updated: 2015-10-20 02:29:23 Tags: decimals 12 Folders: Description: decimals Show Answers: