# Significant Figures For (-1.6 × 10^5) × (-2.4 × 10^15) ÷ 8.9 × 10^3

(-1.6 × 10^5) × (-2.4 × 10^15) ÷ 8.9 × 10^3 = 4 × 1022
Sig Figs
1

## Steps

1 -1.6e5 × -2.4e15 = 3.84e+20 3.84e+20 ÷ 8.9 = 4.314606741573033E+19 10^3 = 1000 4.314606741573033e+19 × 1000 = 4.314606741573033E+22 Round 4.314606741573033e+22 → 4e+22 (Sig Figs: 1)

## Инструкции

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The result along with the steps taken to reach it will appear above.

The following sig fig rules are used:

• Addition (+) and subtraction (-) round by the least number of decimals.
• Multiplication (* or ×) and division (/ or ÷) round by the least number of significant figures.
• Logarithm (log, ln) uses the input's number of significant figures as the result's number of decimals.
• Antilogarithm (n^x.y) uses the power's number of decimals (mantissa) as the result's number of significant figures.
• Exponentiation (n^x) only rounds by the significant figures in the base.
• To count trailing zeros, add a decimal point at the end (e.g. 1000.) or use scientific notation (e.g. 1.000 × 10^3 or 1.000e3).
• Zeros have all their digits counted as significant (e.g. 0 = 1, 0.00 = 3).
• Rounds when appropriate, after parentheses, and on the final step.

## How To Perform Sig Fig Calculations

Read our article on sig fig rules.

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