1 x 101 = 10
1 x 100 = 1
1 x 10-1 = 0.1
1 x 10-2 = 0.01
1 x 10-3 = 0.001
1 x 10-4 = 0.0001
1 x 10-5 = 0.00001
1 x 10-6 = 0.000001
1 x 10-7 = 0.0000001
1 x 10-8 = 0.00000001
1 x 10-9 = 0.000000001
1 x 10-10 = 0.0000000001
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10-7 is smaller than 10-2.
2 x 10-1 = 0.2 The negative powers are the reciprocals of the positive powers: 10-1 is the same as 1/101 10-2 is the same as 1/102 etc So: 2 x 10-1 = 2 x 1/101 = 2 x 1/10 = 2 / 10 = 0.2
Places in the decimal system are based on powers of ten. 10^2 = hundreds 10^-2 = hundredths 10^1 = tens 10^-1 = tenths 10^0 = ones Since zero doesn't have a negative counterpart, the ones column stands alone.
No, it is not.
Yes it is.