Questions by Simran

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asked Jan 17, 2022 in 8th-maths

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`212 x 5` is a multiple of 3 and 11. Find the value of

asked Jan 17, 2022 in 8th-maths

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If from a two-digit number, we subtract the number formed by reversing its digits then the result so obtained is a perfect cube. How many such numbers are possible? Write all of

asked Jan 17, 2022 in 8th-maths

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Work out the following multiplication. Use the result to answer the following questions. (a) What will be 12345679 `xx` 45? (b) What will be 12345679 `xx` 63? (c) By what number should 12345679 be multiplied to get 888888888? (d) By what number should 12345679 be multiplied to get

asked Jan 17, 2022 in 8th-maths

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Write the additive inverse of the following:

asked Jan 17, 2022 in 8th-maths

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Verify that – (– x) is the same as x for `x

asked Jan 17, 2022 in 8th-maths

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Verify that – (– x) = x for `x =

asked Jan 17, 2022 in 8th-maths

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Find the multiplicative inverse of the following. –

asked Jan 17, 2022 in 8th-maths

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Fill in the blanks. The reciprocal of – 5 is

asked Jan 17, 2022 in 8th-maths

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Fill in the blanks. Reciprocal of `1/x`, where x ≠ 0 is

asked Jan 17, 2022 in 8th-maths

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Fill in the blanks. The product of two rational numbers is always a

asked Jan 17, 2022 in 8th-maths

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Find five rational numbers between. `2/3` and

asked Jan 17, 2022 in 8th-maths

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Find five rational numbers between. `1/4` and

asked Jan 17, 2022 in 8th-maths

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Draw a histogram for the frequency table made for the data in Question 3, and answer the following questions. The weekly wages (in Rs) of 30 workers in a factory are. 830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845,

asked Jan 17, 2022 in 8th-maths

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The number of hours for which students of a particular class watched television during holidays is shown through the given graph. Answer the following.

asked Jan 17, 2022 in 8th-maths

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What will be the unit digit of the squares of the following numbers? 799

asked Jan 17, 2022 in 8th-maths

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The following numbers are obviously not perfect squares. Give reason. 89722

asked Jan 17, 2022 in 8th-maths

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Without adding, find the sum. 1 + 3 + 5 + 7 +

asked Jan 17, 2022 in 8th-maths

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Find the square of the following numbers without actual multiplication. 39

asked Jan 17, 2022 in 8th-maths

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Find the square roots of the following numbers by the Prime Factorisation Method. 9604

asked Jan 17, 2022 in 8th-maths

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