Scientific notation

1. 1.
   Write 3400 in scientific notation.
   a)3.4 × 10⁴b)3.4 × 10²c)3.4 × 10³d)34 × 10²
2. 2.
   Write 7700 in scientific notation.
   a)77 × 10²b)7.7 × 10³c)7.7 × 10²d)7.7 × 10⁴
3. 3.
   Write 6.4 × 10⁶ as an ordinary number.
4. 4.
   Write 490000 in scientific notation.
   a)4.9 × 10⁶b)4.9 × 10⁵c)49 × 10⁴d)4.9 × 10⁴
5. 5.
   Write 30000 in scientific notation.
   a)3 × 10³b)3 × 10⁴c)30 × 10³d)3 × 10⁵
6. 6.
   Write 8.8 × 10⁶ as an ordinary number.
7. 7.
   Write 5.3 × 10⁻² as an ordinary number.
8. 8.
   Write 1800000 in scientific notation.
   a)18 × 10⁵b)1.8 × 10⁷c)1.8 × 10⁵d)1.8 × 10⁶
9. 9.
   Write 1.4 × 10⁶ as an ordinary number.
10. 10.
    Write 0.000067 in scientific notation.
    a)6.7 × 10⁻⁵b)6.7 × 10⁻⁶c)6.7 × 10⁻⁴d)67 × 10⁻⁶
11. 11.
    Write 6.9 × 10³ as an ordinary number.
12. 12.
    Write 8200 in scientific notation.
    a)8.2 × 10³b)8.2 × 10⁴c)8.2 × 10²d)82 × 10²
13. 13.
    Write 67000 in scientific notation.
    a)6.7 × 10³b)6.7 × 10⁵c)67 × 10³d)6.7 × 10⁴
14. 14.
    Write 6100 in scientific notation.
    a)61 × 10²b)6.1 × 10²c)6.1 × 10⁴d)6.1 × 10³
15. 15.
    Write 0.000012 in scientific notation.
    a)1.2 × 10⁻⁵b)1.2 × 10⁻⁶c)12 × 10⁻⁶d)1.2 × 10⁻⁴
16. 16.
    Write 620 in scientific notation.
    a)62 × 10¹b)6.2 × 10¹c)6.2 × 10³d)6.2 × 10²
17. 17.
    Write 3.4 × 10⁶ as an ordinary number.
18. 18.
    Write 3.5 × 10⁷ as an ordinary number.
19. 19.
    Write 8300 in scientific notation.
    a)83 × 10²b)8.3 × 10³c)8.3 × 10⁴d)8.3 × 10²
20. 20.
    Write 4.7 × 10⁻³ as an ordinary number.

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