Question 73

The value of $$165 - [135 - \left\{84 \div 4  of  3 - (16 - 18 \div 3)\right\}]$$ is:

Solution

= $$165 - [135 - \left\{84 \div 4 of 3 - (16 - 18 \div 3)\right\}]$$

= $$165-[135-\left\{84\div12-(16-6)\right\}]$$

= $$165-[135-\left\{7-(16-6)\right\}]$$

= $$165-[135-\left\{7-10\right\}]$$

= $$165-[135-\left\{-3\right\}]$$

= $$165-[135+3]$$

= 165-138

= 27


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