Question
Which two signs should be interchanged in the following equation to make it correct: 640 Γ· 80 + 6 Γ 20 β 10 = 58
Solution
640 Γ· 80 + 6 Γ 20 β 10 = 58 640 Γ· 80 Γ 6 + 20 β 10 = 58 8 Γ 6 + 20 β 10 = 58 48 + 20 β 10 = 58
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