23-42 -2- 101-3- 100- 4- 10-1-2- 10-2

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Byju's Answer

Standard VII

Mathematics

Expanding a Rational Number Using Powers

23.42 =2× 101...

Question

23.42 =
$2 \times 10^{1} + 3 \times 10^{0} + 4 \times 10^{- 1} + 2 \times 10^{- 2}$

False

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True

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Solution

The correct option is B True

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Similar questions

Q. 23.42 =

2 \times 10^{1} + 3 \times 10^{0} + 4 \times 10^{- 1} + 2 \times 10^{- 2}

(1 \times 10^{3}) + (2 \times 10^{2}) + (3 \times 10^{1}) + (4 \times 10^{0}) + (2 \times 10^{- 1}) + (3 \times 10^{- 2})

Find the value of

$(2 \times 10^{4}) + (3 \times 10^{3}) + (1 \times 10^{2}) + (6 \times 10^{1}) + (7 \times 10^{0}) + (4 \times 10^{- 1}) + (2 \times 10^{- 2}) + (8 \times 10^{- 3})$

Q. 3

\times

10^{2}

+ 2

\times

10^{1}

+ 9

\times

10^{0}

+ 2

\times

10^{- 1}

+ 5

\times

10^{- 2}

can be expressed as

Express $(3 \times 10^{2}) + (2 \times 10^{1}) + (9 \times 10^{0}) + (2 \times 10^{- 1}) + (5 \times 10^{- 2})$ as a numeral.

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23.42 = 2×101+3×100+4×10−1+2×10−2

The correct option is B True

23.42 =
$2 \times 10^{1} + 3 \times 10^{0} + 4 \times 10^{- 1} + 2 \times 10^{- 2}$