完成下面的题目用了几分时间.256×4÷8 8×125÷5 &
1个回答

解题思路:(1)(2)(7)(9)按照从左到右的顺序计算;

(3)先算加法,再算乘法;

(4)(5)先算除法,再算减法;

(6)先算加法,再算除法;

(8)先算除法,再算加法.

(1)256×4÷8

=1024÷8

=128;

(2)8×125÷5

=1000÷5

=200;

(3)(126+62)×4

=188×4

=752;

(4)728÷8-65

=91-65

=26;

(5)300-912÷6

=300-152

=148;

(6)(64+56)÷3

=120÷3

=40;

(7)327×8÷3

=2616÷3

=872;

(8)156÷3+120

=52+120

=172;

(9)624×7÷6

=4368÷6

=728.

点评:

本题考点: 整数四则混合运算.

考点点评: 此题考查整数的四则混合运算,抓住运算顺序,正确按步骤计算即可.