Question 26

By interchanging which two signs the equation will be correct?
$$6 + 9 \times 2 - 3 \div 4 = 8$$

Solution

$$6 + 9 \times 2 - 3 \div 4 = 8$$

this results in a fraction so in order to get a whole number which is 8 it is important to place divide symbol such that a whole number is obtained

now if $$- and \div$$ is interchanged 9 gets divided by 3 thus resulting in a whole number

$$6 + 9 \times 2\div 3- 4 $$ (using BODMAS rule)

$$ 6 + \frac{ 9 \times 2}{ 3} - 4 $$

= 6+ 6 - 4 = 8

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By interchanging which two signs the equation will be correct?$$6 + 9 \times 2 - 3 \div 4 = 8$$