quiz > Collège > Maths

Opérations sur les puissances

1) an x am = an + m
2) (an)m = an : m
3) an / am = a n-m
4) (a/b)n = an / bn
5) a-n = 1/a-n
6) a0 = a
7) a1 = a
8) 10n x 10m = 10n + m
9) (10n)m = 10n x m
10) 10n / 10m = 10 n-m
11) 10-n = 1/10-n
12) 100 = 1
13) 101 = 10
14) 10n x 10m x 10p= 10n + m + p
15) (-2)2 x (-2)5 x (-2)-10 = ?
16) ((-65)7 x (-65)-10) / (-65)2 = ?
17) ((-2)3 x (-2)10) / (-2)5 =?
18) (+5)4 x (-1)2 x (-1)-7 x (+5)-8 = ?
19) (105 x 10-2) / 1012 = ?
20) 2 x 105 x 4 x 5 x 10-2 x 104 / (1012 x 20 x 10-4) = ?
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