题目内容
(76+35)÷3 | 850-250×3 | 634÷2×4 |
664÷(2×4) | 200-125÷5 | 345÷5÷3. |
分析:(1)先算小括号里的加法,再算除法,
(2)先算除法,再算减法,
(3)从左向右进行解答即可,
(4)先算小括号里的乘法,再算括号外除法,
(5)先算除法,再算减法,
(6)从左向右进行解答即可.
(2)先算除法,再算减法,
(3)从左向右进行解答即可,
(4)先算小括号里的乘法,再算括号外除法,
(5)先算除法,再算减法,
(6)从左向右进行解答即可.
解答:解:(1)(76+35)÷3,
=111÷3,
=37;
(2)850-250×3,
=850-750,
=100;
(3)634÷2×4,
=317×4,
=1268;
(4)664÷(2×4),
=664÷8,
=83;
(5)200-125÷5,
=200-25,
=175;
(6)345÷5÷3,
=69÷3,
=23.
=111÷3,
=37;
(2)850-250×3,
=850-750,
=100;
(3)634÷2×4,
=317×4,
=1268;
(4)664÷(2×4),
=664÷8,
=83;
(5)200-125÷5,
=200-25,
=175;
(6)345÷5÷3,
=69÷3,
=23.
点评:本题考查了整数四则混合运算的顺序,注意有小括号里的要先算小括号里的运算.
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