题目内容
脱式计算. 35×(729÷27) |
470+21×19 | 360+612÷12 | 6+2×8÷4. |
分析:(1)先算小括号里面的除法,再算括号外的乘法;
(2)先算乘法,再算加法;
(3)先算除法,再算加法;
(4)先算乘法,再算除法,最后算加法.
(2)先算乘法,再算加法;
(3)先算除法,再算加法;
(4)先算乘法,再算除法,最后算加法.
解答:解:(1)35×(729÷27)
=35×27
=945;
(2)470+21×19
=470+399
=869;
(3)360+612÷12
=360+51
=411;
(4)6+2×8÷4
=6+16÷4
=6+4
=10.
=35×27
=945;
(2)470+21×19
=470+399
=869;
(3)360+612÷12
=360+51
=411;
(4)6+2×8÷4
=6+16÷4
=6+4
=10.
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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