簡約 999.9999800000000…(6.5*10^{-3})

解

簡約

999.9999800000000 \dots (6.5 \cdot 1 0^{- 3})

6.49999987

解答ステップ

999.99998 (6.5 \cdot 1 0^{- 3})

1 0^{- 3} = \frac{1}{1000}

= 999.99998 \cdot 6.5 \cdot \frac{1}{1000}

6.5 \cdot \frac{1}{1000} = \frac{6.5}{1000}

= 999.99998 \cdot \frac{6.5}{1000}

数を割る:

\frac{6.5}{1000} = 0.0065

= 999.99998 \cdot 0.0065

数を乗じる:

999.99998 \cdot 0.0065 = 6.49999987

= 6.49999987