Estimate by rounding. Then find the difference.
Align and estimate by rounding. Then find the difference.
- 0.910.745 10. 0.91580.7444 11. 8 2.04735
- 7,106,009248,310 13. 20,700.675700.775 14. 1 0.3856
- $1,012,481.37926,399.76 16. 5,391,602,1404,387,899,000
403.0078
86.25
596,081,009
574,116,025
12.80765
9.6153
23,594,550
7,008,142
5,034,012
316,948
$856,079
622,003
2.3004
0.1544
0.586
0.492
The table shows online sales totals for 2004 and 2005.
Use the table to answer exercises 17–19.
- What is the difference in sporting
goods sales from 2004 to 2005? - Which type of merchandise had a
greater sales difference between
2004 and 2005? - Which year had greater total
sales, 2004 or 2005? Explain
how you know.
Compute mentally.
- 1286 1000 21. 0.980.08 22.0.980.9
- 14,500 1500 24. 7 0.5 25.15.754.25
- 0.5250.5 27.262,00042,000 28. 242 0.75
Total Online Sales: 2004 vs. 2005
Merchandise 2004 2005
Books and
Magazines
Music and
Videos
Sporting
Goods
Toys and
Games
$1,961,000
$1,598,000
$1,031,000
$1,321,000
$2,143,000
$1,733,000
$1,155,000
$1,638,000
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