题目内容
脱式计算.
72÷9×156 | 462÷(2×3) | 4001-384÷6. |
分析:(1)先算除法,再算乘法;
(2)先算乘法,再算除法;
(3)先算除法,再算减法.
(2)先算乘法,再算除法;
(3)先算除法,再算减法.
解答:解:
(1)72÷9×156,
=8×156,
=1248;
(2)462÷(2×3),
=462÷6,
=77;
(3)4001-384÷6,
=4001-64,
=3937.
(1)72÷9×156,
=8×156,
=1248;
(2)462÷(2×3),
=462÷6,
=77;
(3)4001-384÷6,
=4001-64,
=3937.
点评:四则运算,先弄清运算顺序,然后再进一步计算,能简算的要简算.
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