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Secondary School (English Medium) (5 to 8) इयत्ता ८ - CBSE Question Bank Solutions for Mathematics

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Mathematics
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Let abc be a three digit number. Then abc + bca + cab is not divisible by ______.

[16] Playing with Numbers
Chapter: [16] Playing with Numbers
Concept: undefined >> undefined

If the sum of digits of a number is divisible by three, then the number is always divisible by ______.

[16] Playing with Numbers
Chapter: [16] Playing with Numbers
Concept: undefined >> undefined

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If x + y + z = 6 and z is an odd digit, then the three-digit number xyz is ______.

[16] Playing with Numbers
Chapter: [16] Playing with Numbers
Concept: undefined >> undefined

3134673 is divisible by 3 and ______.

[16] Playing with Numbers
Chapter: [16] Playing with Numbers
Concept: undefined >> undefined

Number of the form 3N + 2 will leave remainder 2 when divided by 3.

[16] Playing with Numbers
Chapter: [16] Playing with Numbers
Concept: undefined >> undefined

Find the multiplicative inverse of -13

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Find the multiplicative inverse `(-13)/19`

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Find the multiplicative inverse  `(-5)/8 xx (-3)/7`

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Find the multiplicative inverse of `1/5`

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Find the multiplicative inverse of `-1 xx (-2)/5`

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Find the multiplicative inverse -1

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Multiply `6/13` by the reciprocal of `-7/16`

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Is `8/9` the multiplicative inverse of -1 `1/8`? Why or why not?

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Is 0.3 the multiplicative inverse of 3 `1/3` ? Why or why not?

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Write: The rational number that does not have a reciprocal

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Write : The rational numbers that are equal to their reciprocals.

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

The numbers ______ and ______ are their own reciprocal.

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Fill in the blanks

The reciprocal of − 5 is ______.

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Fill in the blanks

Reciprocal of `1/x` where `x != 0` is _______

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined

Fill in the blanks

The reciprocal of a positive rational number is ________.

[1] Rational Numbers
Chapter: [1] Rational Numbers
Concept: undefined >> undefined
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