题目内容
| 计算下列各题,怎样简便就怎样算. 18.8×0.96÷(5﹒4÷0﹒9) | 2.8×3.6+1.4×2.8 |
| 78.7-1.25-1.75 | 72÷0.8-16×0.5. |
(1)18.8×0.96÷(5.4÷0.9),
=18.8×0.96÷6,
=18.8×(0.96÷6),
=18.8×0.16,
=3.008;
(2)2.8×3.6+1.4×2.8,
=2.8×(3.6+1.4),
=2.8×5,
=14;
(3)78.7-1.25-1.75,
=78.7-(1.25+1.75),
=78.7-3,
=75.7;
(4)72÷0.8-16×0.5,
=90-8,
=82.
=18.8×0.96÷6,
=18.8×(0.96÷6),
=18.8×0.16,
=3.008;
(2)2.8×3.6+1.4×2.8,
=2.8×(3.6+1.4),
=2.8×5,
=14;
(3)78.7-1.25-1.75,
=78.7-(1.25+1.75),
=78.7-3,
=75.7;
(4)72÷0.8-16×0.5,
=90-8,
=82.
练习册系列答案
相关题目