If ‘-‘ means ‘addition’, ‘+’ means ‘subtraction’, ‘÷’ means ‘multiplication’ and ‘×’ means ‘division’ , then find the value of the expression given below:
30 × 5 – 24 + (40 ÷ 2) – 42
= 30 × 5 – 24 + (40 ÷ 2) – 42 = 30 ÷ 5 + 24 - (40 × 2) + 42 = 6 + 24 – 80 + 42 = 30 – 80 + 42 = - 8
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