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Divisibility Rule for 9

Simplify: 57 ...

Question

Simplify: 57 in the form of 10a + b.

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Solution

$57 = (5 \times 10) + (7 \times 1)$
Any two digit number ab can be written as 10a+b

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Similar questions

Q. Simplify and express each of the following in exponential form:

({(5^{2})}^{3} \times 5^{4}) \div 5^{7}

Q. Simplify and express in exponential form:

[(5^{2})^{3} \times 5^{4}] \div 5^{7}

Q. Question 2(ii)
Simplify and express each of the following in exponential form:

[(5^{2})^{3} \times 5^{4}] \div 5^{7}

Q. Simplify and express each of the following in exponential form:
(1) [(5²)³ × 5⁴] ÷ 5^7

(2)(3⁰ + 2⁰) × 5⁰

[38 \div (- 57)]

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Divisibility Rule for 9

Standard VI Mathematics

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