Question

0.42×160+3.6×1.6-34x3.2的简便计算

Answer 1

0.042×160+3.6×1.6-34×3.2
原式=42×1.6+3.6×1.6-6.8×1.6
=1.6×（4.2+3.6-6.8）
=1.6×1
=1.6