题目内容
一步一步地计算.
200-15×8 | 180×3×5 | (33+39)÷6 | 203×(72÷8) |
分析:(1)先算乘法,再算减法;
(2)按照从左到右的顺序计算;
(3)先算小括号里面的加法,再算括号外的除法;
(4)先算小括号里面的除法,再算括号外的乘法.
(2)按照从左到右的顺序计算;
(3)先算小括号里面的加法,再算括号外的除法;
(4)先算小括号里面的除法,再算括号外的乘法.
解答:解:(1)200-15×8,
=200-120,
=80;
(2)180×3×5,
=540×5,
=2700;
(3)(33+39)÷6,
=72÷6,
=12;
(4)203×(72÷8),
=203×9,
=1827.
=200-120,
=80;
(2)180×3×5,
=540×5,
=2700;
(3)(33+39)÷6,
=72÷6,
=12;
(4)203×(72÷8),
=203×9,
=1827.
点评:本题考查了简单的四则混合运算,计算时先理清楚运算顺序,根据运算顺序逐步求解即可.
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