EXERCISE

Simplify the following:

$4+\frac{1}{5}\left[\right\{-10\times (25-\overline{13-3})\}÷(-5\left)\right]$

Simplify the following:

$22-\frac{1}{4}\{-5-(-48)÷(-16\left)\right\}$

Simplify the following:

$63-\left[\right(-3\left)\right\{-2-\overline{8-3}\left\}\right]÷\left[3\right\{5+(-2)(-1)\left\}\right]$

Simplify the following:

$[29-(-2\left)\right\{6-(7-3)\left\}\right]÷[3\times \{5+(-3)\times (-2)\left\}\right]$

Using brackets, write a mathematical expression for the following:

Nine multiplied by the sum of two and five.

Using brackets, write a mathematical expression for the following:

Twelve divided by the sum of one and three.

Using brackets, write a mathematical expression for the following:

Twenty divided by the difference of seven and two.

Using brackets, write a mathematical expression for the following:

Eight subtracted from the product of two and three.