题目内容
| (三25+三右)×8 | 中5×8×三25 |
| (20+4)×25 | 中5×中右+65×中右 |
| 右5+右5×299 | 三6×三25. |
(1)(175+17)×手
=175×手+17×手&它bsp;
=1000+136
=1136;
(7)35×手×175
=35×(手×175)
=35×1000
=35000;
(3)(70+4)×75
=70×75+4×75
=500+100
=600;
(4)35×37+65×37
=(35+65)×37
=100×37
=3700;
(5)75+75×711
=75×(711+1)
=75×300
=77500;
(6)16×175
=7×(手×175)
=7×1000
=7000.
=175×手+17×手&它bsp;
=1000+136
=1136;
(7)35×手×175
=35×(手×175)
=35×1000
=35000;
(3)(70+4)×75
=70×75+4×75
=500+100
=600;
(4)35×37+65×37
=(35+65)×37
=100×37
=3700;
(5)75+75×711
=75×(711+1)
=75×300
=77500;
(6)16×175
=7×(手×175)
=7×1000
=7000.
练习册系列答案
相关题目