能简算的要用简便方法计算
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能简算的要用简便方法计算
24.1×1.5+7.59×15 (3.7+17×0.4)÷3.5 75.36÷12-4.32×0.5
8.8×0.125 7.6×5.3+3.7×7.6 6.6÷(0.68+0.42)
24.1×1.5+7.59×15 (3.7+17×0.4)÷3.5 75.36÷12-4.32×0.5
8.8×0.125 7.6×5.3+3.7×7.6 6.6÷(0.68+0.42)
![能简算的要用简便方法计算](/uploads/image/z/7971704-8-4.jpg?t=%E8%83%BD%E7%AE%80%E7%AE%97%E7%9A%84%E8%A6%81%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97)
①24.1×1.5+7.59×15,
=2.41×15+7.59×15,
=(2.41+7.59)×15,
=10×15,
=150;
②(3.7+17×0.4)÷3.5,
=(3.7+6.8)÷3.5,
=10.5÷3.5,
=3;
③75.36÷12-4.32×0.5,
=6.28-2.16,
=4.12;
④8.8×0.125,
=(8+0.8)×0.125,
=8×0.125+0.8×0.125,
=1+0.1,
=1.1;
⑤7.6×5.3+3.7×7.6,
=(5.3+3.7)×7.6,
=9×7.6,
=68.4;
⑥6.6÷(0.68+0.42),
=6.6÷1.1,
=6.
=2.41×15+7.59×15,
=(2.41+7.59)×15,
=10×15,
=150;
②(3.7+17×0.4)÷3.5,
=(3.7+6.8)÷3.5,
=10.5÷3.5,
=3;
③75.36÷12-4.32×0.5,
=6.28-2.16,
=4.12;
④8.8×0.125,
=(8+0.8)×0.125,
=8×0.125+0.8×0.125,
=1+0.1,
=1.1;
⑤7.6×5.3+3.7×7.6,
=(5.3+3.7)×7.6,
=9×7.6,
=68.4;
⑥6.6÷(0.68+0.42),
=6.6÷1.1,
=6.