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Exponents — Maths STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8MathsExponents1 Mark
Question
Fill in the blank.0.0000123 written in standard form is __________.
✓

Answer

0.0000123 written in standard form is $1 . 2 3 \times 10^{-5}$.

$0.0000123$

$=\frac{123}{10000000}$

$=\frac{123}{10^7}$

$=\frac{1.23\times100}{10^7}$

$=\frac{1.23\times10^2}{10^7}$

$=1.23\times10^{(2-7)}$

$=1.23\times10^{-5}$

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