B Nirmala Shastry Solutions for Exercise 1: EXERCISE 4.1

Simplify $\frac{1}{2}$ of $10+9-\left(9+7\right)÷4-3\times 2$

Simplify $36-\left\{48÷\left(16-4\times 2\right)\right\}$

Simplify $28-\left[22-\left\{7+24÷\left(6-\overline{8-4}\right)\right\}\right]$

Using brackets formulate the numerical expression for the following word problems.
Divide $65$ by the product of $13$ and $5$.
 

Using brackets formulate the numerical expression for the following word problems.
Divide the sum of $23$ and $12$ by $7$.
 

Using brackets formulate the numerical expression for the following word problems.
Find the product of the difference of $84$ and $48$ and the sum of $4$ and $2$.
 

Using brackets formulate the numerical expression for the following word problems.
 Find $\frac{1}{2}$ of the difference of $101$ and the product of $13$ and $7$.
 

Using brackets formulate the numerical expression for the following word problems.
Add $10$ to $5$ times the difference of the product of $9$ and $15$ and the sum of $65$ and $35$.