cxri 幼苗
共回答了18个问题采纳率:88.9% 举报
(1)785-76÷2
=785-38
=747
答:差是747;
(2)1800-15×4
=1800-60
=1740
答:差是1740;
(3)434+36×6
=434+216
=550
答:得550;
(4)28÷(8-5)
=28÷3
=9[1/3]
答:得9[1/3];
(5)(302+18)×5
=320×5
=1600
答:积是1600;
(6)28×5-130
=140-130
=10
答:少10;
(7)1240-(740-290)
=1240-450
=790
答:多790;
(8)18×7-120
=126-120
=6
答:相差6.
点评:
本题考点: 整数四则混合运算.
考点点评: 列式计算注意语言叙述的运算顺序,正确理解题意,列式计算即可.
1年前
你能帮帮他们吗