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182.20 + 77.80 - 70.89 = 18.75 × 8.88 + ?1). 112). 453). 184). 21 |
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Answer» Given expression is, 182.20 + 77.80 - 70.89 = 18.75 × 8.88 + ? We can write the given values as: 182.20 ≈ 182 and 77.80 ≈ 78 70.89 ≈ 71 and 18.75 ≈ 19 and 8.88 ≈ 9 Then, ⇒ 182 + 78 - 71 = 19 × 9 + ? ⇒ 182 + 78 - 71 = 171 + ? ⇒ 260 - 71 = 171 + ? ⇒ 189 = 171 + ? ⇒ ? = 189 - 171 ⇒ ? ≈ 18 |
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