The value of 7 - 6 - 5 is equal to

The correct option is D (7 × 6) × 5 7 × (6 × 5) = 7 × 30 = 210 And #160; (7 × 6) × 5 = 42 × 5 = 210 So, option D is correct. ...

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Byju's Answer

Standard VII

Mathematics

Properties of Multiplication of Integers

The value of ...

Question

The value of $7 \times (6 \times 5)$ is equal to

(7 \times 6) + (7 \times 5)

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215

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(7 \times 6) \times (7 \times 5)

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(7 \times 6) \times 5

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Solution

The correct option is D $(7 \times 6) \times 5$
$7 \times (6 \times 5) = 7 \times 30 = 210$
And $(7 \times 6) \times 5$ = $42 \times 5 = 210$

So, option $D$ is correct.

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Similar questions

\frac{(- \frac{5}{6})^{3 / 4}}{(- \frac{5}{6})^{7 / 6}} = (- \frac{5}{6})^{7 - x}

, the value of x is :

Q. The value of

\frac{1}{\sqrt{9} - \sqrt{8}} - \frac{1}{\sqrt{8} - \sqrt{7}} + \frac{1}{\sqrt{7} - \sqrt{6}} - \frac{1}{\sqrt{6} - \sqrt{5}} + \frac{1}{\sqrt{5} - \sqrt{4}}

is equal to

Verify the following :

(i) $\frac{3}{7} \times (\frac{5}{6} + \frac{12}{13}) = (\frac{3}{7} \times \frac{5}{6}) + (\frac{3}{7} \times \frac{12}{13})$
(ii) $\frac{- 15}{4} \times (\frac{3}{7} + \frac{- 12}{5}) = (\frac{- 15}{4} \times \frac{3}{7}) + (\frac{- 15}{4} \times \frac{- 12}{5})$
(iii) $(\frac{- 8}{3} + \frac{- 13}{12}) \times \frac{5}{6} = (\frac{- 8}{3} \times \frac{5}{6}) + (\frac{- 13}{12} \times \frac{5}{6})$
(iv) $\frac{- 16}{7} \times (\frac{- 8}{9} + \frac{- 7}{6}) = (\frac{- 16}{7} \times \frac{- 8}{9}) + (\frac{- 16}{7} \times \frac{- 7}{6})$

(- \frac{5}{6})^{3 / 4}

when divided by

(- \frac{5}{6})^{7 / 6}

becomes

(- \frac{5}{6})^{7 - x}

, the value of x is:

Question 6

Which of the following expressions show that rational numbers are associative under multiplication.
(a) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = (\frac{2}{3} \times \frac{- 6}{7}) \times \frac{3}{5}$
(b) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = \frac{2}{3} \times (\frac{3}{5} \times \frac{- 6}{7})$
(c) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = (\frac{3}{5} \times \frac{2}{3}) \times \frac{- 6}{7}$
(d) $(\frac{2}{3} \times \frac{- 6}{7}) \times \frac{3}{5} = (\frac{- 6}{7} \times \frac{2}{3}) \times \frac{3}{5}$

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The value of 7×(6×5) is equal to

The correct option is D (7×6)×57×(6×5)=7×30=210And (7×6)×5 = 42×5=210So, option D is correct.

The value of $7 \times (6 \times 5)$ is equal to

The correct option is D $(7 \times 6) \times 5$
$7 \times (6 \times 5) = 7 \times 30 = 210$
And $(7 \times 6) \times 5$ = $42 \times 5 = 210$

So, option $D$ is correct.