1) exercicos resultado na base 10
a) 10⁶x 10⁵
10⁻⁵
b)2,10⁹ x 5,10⁷
3,10⁷
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6 5 6 + 5 11 11 5
10 . 10 10 10 10 . 10
-------------------- = --------------- = ---------------- =
- 5 - 5 - 5
10 10 10
11 + 5 16
= 10 = 10
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
b)
9 7 9 1 + 9 10
2 . 10 . 5 . 10 10. 10 10 10
-------------------------------- = -------------- = ----------- = ------------
7 3 3 3
3 . 10
10 . 10 10 10 10 . 10
-------------------- = --------------- = ---------------- =
- 5 - 5 - 5
10 10 10
11 + 5 16
= 10 = 10
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
b)
9 7 9 1 + 9 10
2 . 10 . 5 . 10 10. 10 10 10
-------------------------------- = -------------- = ----------- = ------------
7 3 3 3
3 . 10
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