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Write the following numbers in scientific notation:

1) 21,000 __________ 4) 0.0021 __________

2) 1,530 __________ 5) 0.00004 __________

3) 7,000,000,000 __________ 6) 0.036 __________

Convert the following scientific notation numbers to “regular” notation:

7) 1.72 x 105 ______________________________

8) 3.5 x 1013 ______________________________

9) 1.003 x 1021 ______________________________

Practice multiplying in scientific notation:

10) 2.5875 x 103 x 8.065 x 103=

11) 8.4208 x 101 x 2.0556 x 102=

12) 4.3395 x 101 x 9.8628 x 103=

13) 3.2255 x 100 x 7.416 x 102=

Practice dividing in scientific notation:

14) 3.567 x 107 ÷ 5.8999 x 102

15) 5.3275 x 106 ÷ 5.4949 x 102=

16) 1.236 x 105 ÷ 3.8521 x 101=

17) 9.4408 x 105 ÷ 3.6343 x 102=

Add and subtract in Scientific Notation

18) (4.2 x 105) + (2.3 x 105) =

19) (1.2 x 101) + (2.0 x 102) =

20) (4.5 x 103) - (6.2 x 103) =

21) (5.5 x 103) - (4.2 x 102) =

Multiply in sci.not.

1) 2.0868 x 107 3) 4.2799 x 105

2) 1.731 x 104 4) 2.392 x 103

Divide in sci. not.

|1) |6.046 x 104 |3) |3.2087 x 103 |

|2) |9.6954 x 103 |4) |2.5977 x 103 |

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