Tag: maths

Questions Related to maths

Solve $ 7.86 \times 4.6 =$

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. 36.156

  2. 36.216

  3. 351.56

  4. 361.56

Show answer
Correct Option: A
Explanation:

The value of $7.86 \times 4.6 $

$= (8-0.14)(4+0.6) $
$= 32+4.8-0.56-0.084$
$ = 36.8-0.644$
$ = 36.156$

$3897\times 999=$?

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. $3883203$

  2. $3893103$

  3. $3639403$

  4. $3791203$

  5. None of these

Show answer
Correct Option: B
Explanation:

$3897\times 999=3897\times (1000-1)$
$=3897\times 1000-3897\times1$
$=3897000-3897$
$=3893103$

$34\times 56= ?$

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. $2394$

  2. $1194$

  3. $1094$

  4. $1904$

Show answer
Correct Option: D
Explanation:

$\ \ \ \ \ \ \ \ 34 \ \times\ \ \ \  56 \ ----$

$\ \ \ \ \ \ 204 \ + 1700 \ ----- \ \ \ \ \ 1904$

Divide : $16974\div 23\div 2$

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. $738$

  2. $1476$

  3. $369$

  4. $1567$

Show answer
Correct Option: C
Explanation:

$16974\div 23\div 2$

$=(16974\div 23)\div 2\ =738\div 2\ =369$
Hence, the answer is $369$.

Evaluate:$12340\times 23=$

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. $12,345$

  2. $65,2350$

  3. $28,3820$

  4. $56,234$

Show answer
Correct Option: C
Explanation:

$\ \ \ \ 12340\ \times \ \ \ \ \ \ 23 \ ---- \ \ \ \ \ \ \ 37020 \ + 246800 \ ---- \ \ \ \ \ 283820$

$12\times 4356= ?$

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. $52,272$

  2. $52,256$

  3. $52,562$

  4. $52,632$

Show answer
Correct Option: A
Explanation:
By law of commutation,
$12 \times 4356 = 4356 \times 12$

By calculation,
$\ \ \ \ \ \ \ \ 4356 \\ \times\ \ \ \ \ \ \ 12 \\ ----$
$\ \ \ \ \ \ 8712 \\ + 43560 \\ ----- \\ \ \ \ \ 52272$

Evaluate: $234\times 0$

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. $234$

  2. $100$

  3. $0$

  4. $1$

Show answer
Correct Option: C
Explanation:

Any number multiplied by $0$ gives $0$ itself.

$\Rightarrow 234\times 0 = 0$

Divide : $0\div 23329$

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. $0$

  2. $1$

  3. $23329$

  4. Not defined

Show answer
Correct Option: A
Explanation:

$0$ when divided by anything results as $0$.

$\therefore 0 \div 23329 = 0$
Hence, answer is $0$.

Which of the following is NOT true?

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. $959877\times 0=0$

  2. $959877\times 1=959877$

  3. $959877\times 10=0$

  4. None of these

Show answer
Correct Option: C
Explanation:

$959877\times 10=9598770$

Hence option C is not true.

Which of the following options is correct?
Statement 1: If $7$ friends divide $76895$ coloured beads amongst themselves, then each will get $10984$ coloured beads
Statement 2: If $16$ families went on a trip and pay Rs. $216352$ in total, then each family will pay Rs. $13522$.

maths ways to multiply and divide mental multiplication multiplication methods multiplication of numbers

  1. Both statement 1 and statement 2 are true

  2. Statement 1 is true but statement-2 is false

  3. Statement-1 is false but statement-2 is true

  4. Both statement-1 and statement-2 are false

Show answer
Correct Option: C
Explanation:

Statement 1-If $7$ friends divide $76895$ beads, each friend will get $(76859\div 7)$ beads i.e., $10985$ beads
So, statement 1 is false
Statement 2: Each family will pay
Rs. $(216352\div 16)=Rs.13552$