Expressing Numbers In Standard Notation Worksheet With Answer Key Page 2
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Answer key
Example: 1
Example: 2
Write 7.2001 × 10 in standard notation.
Write 5.4 × 10 in standard notation.
Here the exponent is 5. We should move the
Here the exponent is -6. We should move the
decimal point 5 places to the right.
decimal point 6 places to the left.
7 . 2 0 0 1 0
0 0 0 0 0 0 5 . 4
7.2001 × 10 =
5.4 × 10
=
720, 010
0.0000054
Express each number in standard notation.
1) 9.203 × 10
=
0.0000000009203
2) 2.1569 × 10
=
215, 690, 000
3) 8.006 × 10
=
0.0000000000008006
4) 5.18 × 10
=
51, 800, 000
5) 6.0155 × 10
=
0.00000000060155
6) 7.042 × 10
=
7, 042, 000, 000, 000
7) 4.1 × 10
=
0.0000041
8) 1.256 × 10
=
1, 256, 000, 000
9) 6.48 × 10
=
648, 000, 000, 000, 000
10) 5.4105 × 10
=
0.0000000000054105
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