0.9= 9x10^-1
0.03= 3x10^-2
* * * * *
The standard form is 0.9 + 0.03 = 0.93
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10 + 2 + .003
.003 of a mile
Four and five hundred sixty-three thousandths. Or if you mean expanded notation, 4+.5+.06+.003
never count the zero's. only count numbers higher than zero.
Three.