题目内容
脱式计算 185-(51+49) |
145+22×13 | 360-360÷6 |
315÷(854-845) | 35×(107-79) | (11+34)×14. |
分析:(1)(4)(5)(6)先算小括号里面的运算,再算括号外的运算;
(2)(3)按照先算乘除,再算加减的顺序计算.
(2)(3)按照先算乘除,再算加减的顺序计算.
解答:解:(1)185-(51+49),
=185-100,
=85;
(2)145+22×13,
=145+286,
=431;
(3)360-360÷6,
=360-60,
=300;
(4)315÷(854-845),
=315÷9,
=35;
(5)35×(107-79),
=35×28,
=980;
(6)(11+34)×14,
=45×14,
=630.
=185-100,
=85;
(2)145+22×13,
=145+286,
=431;
(3)360-360÷6,
=360-60,
=300;
(4)315÷(854-845),
=315÷9,
=35;
(5)35×(107-79),
=35×28,
=980;
(6)(11+34)×14,
=45×14,
=630.
点评:本题考查了基本的混合运算,找清运算的顺序,根据计算法则求解即可.
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