Express each of the following numbers in standard form:

(i) 538
(ii) 6428000
(iii) 82934000000
(iv) 940000000000
(v) 23000000

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Solution

(i) 538 = 5.38 $\times$ 10² [since the decimal point is moved 2 places to the left]

(ii) 6428000 = 6.428 $\times$ 10⁶ [since the decimal point is moved 6 places to the left]

(iii) 82934000000 = 8.2934 $\times$ 10¹⁰ [since the decimal point is moved 10 places to the left]

(iv) 940000000000 = 9.4 $\times$ 10¹¹ [since the decimal point is moved 11 places to the left]

(v) 23000000 = 2.3 $\times$ 10⁷ [since the decimal point is moved 7 places to the left]

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Similar questions

Express the following numbers in standard form.

(i) 0.0000000000085 (ii) 0.00000000000942

(iii) 6020000000000000 (iv) 0.00000000837

(v) 31860000000

\frac{- 12}{30}

\frac{- 14}{49}

\frac{24}{- 64}

\frac{- 36}{- 63}

Express each of the following rational numbers in standard form :

(i) $\frac{- 12}{30}$ (ii) $\frac{- 14}{49}$ (iii) $\frac{24}{- 64}$ (iv) $\frac{- 36}{- 63}$

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