Question
What approximate value
will replace the question mark (?) in the following? ? + 178.96 – 121.04 = 49.98 × 9.02Solution
? + 178.96 – 121.04 = 49.98 × 9.02 ? + 179 – 121 ~ 50 × 9 ? + 58 ~ 450 ? ~ 392
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