题目内容
计算各题,能简算的要简算
①93÷3.1÷0.3 ②5.64÷0.15-15.6
③4+59.2÷2.5④3.8×3.6+6.4×3.8.
①93÷3.1÷0.3 ②5.64÷0.15-15.6
③4+59.2÷2.5④3.8×3.6+6.4×3.8.
①93÷3.1÷0.3,
=93÷(3.1×0.3)
=93÷0.93,
=100;
②5.64÷0.15-15.6,
=37.6-15.6,
=22;
③4+59.2÷2.5,
=4+23.68,
=27.68;
④3.8×3.6+6.4×3.8,
=3.8×(3.6+6.4),
=3.8×10,
=38.
=93÷(3.1×0.3)
=93÷0.93,
=100;
②5.64÷0.15-15.6,
=37.6-15.6,
=22;
③4+59.2÷2.5,
=4+23.68,
=27.68;
④3.8×3.6+6.4×3.8,
=3.8×(3.6+6.4),
=3.8×10,
=38.
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