题目内容
脱式计算. 148÷4+37×6 |
4612-742÷7 |
(973-856)÷3 | 612-312÷6 |
分析:(1)先算除法和乘法,再算加法;
(2)先算除法,再算减法;
(3)先算减法,再算除法;
(4)先算除法,再算减法.
(2)先算除法,再算减法;
(3)先算减法,再算除法;
(4)先算除法,再算减法.
解答:解:(1)148÷4+37×6
=37+222
=259;
(2)4612-742÷7
=4612-106
=4506;
(3)(973-856)÷3
=117÷3
=39;
(4)612-312÷6
=612-52
=560.
=37+222
=259;
(2)4612-742÷7
=4612-106
=4506;
(3)(973-856)÷3
=117÷3
=39;
(4)612-312÷6
=612-52
=560.
点评:此题主要考查整数的四则混合运算的运算顺序,然后根据运算顺序进行计算.
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