Question
Which two signs should we interchange inorder to make
the given equation true? 36 × 5 - 84 ÷ 4 + 50 = 151Solution
If we interchange (+ and - ) then equation become correct: 36 × 5 - 84 ÷ 4 + 50 = 151 36 × 5 + 84 ÷ 4 - 50 = 151 180 + 21 - 50 = 151 201 - 50 = 151 151 = 151
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