4 [ 2.5 + 3 ( 20 + 7 )] = 4 [ 2.5 + 3 ⋅ 27 ] = 4 [ 2.5 + 81 ] = 4 ⋅ 83.5 = 334
4[2.5 + 3 (20 + 7)] 4[2.5 + 3 (27)] 4[2.5 + 81] 4[83.5]
answer: 334
To solve 4 [ 2.5 + 3 ( 20 + 7 )] , first calculate inside the parentheses, then perform multiplication and addition step-by-step. The final result is 334 .
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