201×43-43简便计算

2024-11-16 15:26:00
推荐回答(3个)
回答1:

(1)25×13×4, =25×4×13, =100×13, =1300; (2)135+39+55+61, =(135+55)+(39+61), =190+100, =290; (3)35×201, =35×(200+1), =35×200+35×1, =7000+35, =7035; (4)2000÷25÷8, =2000÷(25×8), =2000÷200, =10; (5)17×43-43×7, =(17-7)×43, =10×43, =430; (6)278-122-78, =278-(122+78), =278-200, =78.

回答2:

=(201-1)×43=200×43=8600
就是把公共的43提出来,先算201-1
祝好

回答3:

等于等于43x括号201+一括号。