Ⅰ 12572(36729)的简便算法
12572+36729
=12572+36728+1
=12600+36700+1
=12300+36700+301
=49000+301
=49301
Ⅱ 绠渚胯$畻锲涘勾绾7zx125
绠渚胯$畻锲涘勾绾7zx125
72*125
=9*8*125
=9*1000
=9000
Ⅲ 125✖️72绠渚挎柟娉曪纻
瑙o细125脳72绛変簬锛 9000 锛
鈭靛凡鐭ラ渶姹傚嚭125脳72绛変簬澶氩皯
A 脳 锛圔 + C锛= A 脳 B + A 脳 C
鈭125 脳 72
= 125 脳 锛70 + 2锛
= 125 脳 70 + 125 脳 2
= 8750 + 250
= 9000
绛旓细125脳72绛変簬9000
Ⅳ 、70x125二求简便算式
你飞了
Ⅳ 88×12572×12的简便运算如何
(1)88×125
=11×8×125
=11×(8×125)
=11×1000
=11000;
第二题是72×125吧
(2)72×125
=9×8×125
=9×(8×125)
=9×1000
=9000
如果是12,则
72×12=864
Ⅵ 宸х畻镐ユユユユユ
700/鍗灭呴棴鍨嬭5.6=700/(7*0.8)=100/琚妗0.8=125
72-12.5*(0.8+4)=72-12.5*0.8-12.5*4=72-10-50=12