Jharne De and Ranjana Kumar Solutions for Chapter: Knowing Our Numbers, Exercise 12: Test Paper 2

$75\times 100-75\times 10=$_____.

The multiplicative identity of $9$ is _____.

The additive identity of $-3$ is _____.

Solve: $|10÷(-5)\times 5|$

Simplify : $6+[2\times \left\{12+\left(16÷2\right)\right\}]$

The product of two numbers is $105$. One of the numbers is $-21$. What is the other number?

An integer when divided by $-16$ gives $368$. Find the integer.

If $\mathrm{a}=2,\mathrm{b}=-3,\mathrm{c}=-4,$ prove that $\mathrm{a}\times \left(\mathrm{b}+\mathrm{c}\right)=\left(\mathrm{a}\times \mathrm{b}\right)+(\mathrm{a}\times \mathrm{c})$.