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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
1.9 Dividing Numbers Written in Scientific Notation

To Divide using Scientific Notation:

  1. Divide decimal numbers with each other.
  2. Use exponent rules to "combine" powers of 10.
  3. If the answer is not in "correct" scientific notation, change to correct notation.
Example:
8.8 x 105 / 2.2 x 102
= (8.8/2.2) x 105-2 (Law of indicies: am/an = am-n)
=4.0 x 103
Directions: Divide the following numbers written in scientific notation and choose the correct answer. Also write atleast 5 examples of your own.
Q 1: 6.8 x 109 / 3.4 x 108
2.0 x 102
3.0 x 101
2.0 x 101

 Q 2: 9.3 x 104 / 3.1 x 103
3.0 x 102
3.0 x 10-1
3.0 x 101

Q 3: 4.8 x 108 / 1.2 x 102
4.0 x 106
4.0 x 107
4.0 x 105

 Q 4: 2.2 x 105 / 1.1 x 101
2.0 x 103
2.0 x 104
2.0 x 105

Q 5: 9.9 x 106 / 3.3 x 105
3.0 x 101
3.0 x 102
3.0 x 103

 Q 6: 6.4 x 104 / 2.0 x 101
2.3 x 103
3.2 x 103
3.2 x 10-3

Q 7: 5.5 x 107 / 1.1 x 103
5.0 x 105
5.1 x 103
5.0 x 104

 Q 8: 7.0 x 106 / 3.5 x 103
2.0 x 102
2.0 x 103
2.0 x 104

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 Question 10: This question is available to subscribers only!


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