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April 16, 2014

Homework Help: 7th grade math

Posted by Delilah on Wednesday, September 26, 2012 at 7:52pm.

1.
The area of Greenland is 840,000 square miles. What is this number in scientific notation? (1 point)

840 x 105
84 x 105
8.4 x 105
8.4 x 105

2.
What answer represents this number in scientific notation?

0.00000916 (1 point)

916 x 108
9.16 x 106
916 x 108
9.16 x 106

3.
What is this number in standard form?

5.75 x 109 (1 point)

5,750,000,000
575,000,000,000
0.00000000575
0.575000000000

4.
What is this number in standard form?

6.8 x 104 (1 point)

68,000
680,000
0.000068
0.00068

5.
In a recent year the world production of wheat was about 5.2 x 108 metric tons. What is this number in standard notation? (1 point)

0.000000052
0.0000000052
520,000,000
5,200,000,000

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