题目内容
计算下面各题,注意使用简便算法.
| ①0.36+9.6÷3.2 | ②3.2×5.7+6.8×5.7 |
| ③25×6.8×0.04 | ④3.75÷〔0.3×(1.34-0.84)〕 |
①0.36+9.6÷3.2,
=0.36+3,
=3.36;
②3.2×5.7+6.8×5.7,
=(3.2+6.8)×5.7,
=10×5.7,
=57;
③25×6.8×0.04,
=25×0.04×6.8,
=1×6.8,
=6.8;
④3.75÷[0.3×(1.34-0.84)],
=3.75÷[0.3×0.5],
=3.75÷0.15,
=25.
=0.36+3,
=3.36;
②3.2×5.7+6.8×5.7,
=(3.2+6.8)×5.7,
=10×5.7,
=57;
③25×6.8×0.04,
=25×0.04×6.8,
=1×6.8,
=6.8;
④3.75÷[0.3×(1.34-0.84)],
=3.75÷[0.3×0.5],
=3.75÷0.15,
=25.
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