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35×22的简便算法,脱式算

35×2×11 =70×11 =770

25×36简便算法脱式计算 25×36 =25*4*9 =100*9 =900

1、475+254+361 2、615+475+125 3、860-168+159 4、465+358-27 5、647-(85+265) 6、476+(65-29) 7、154×8÷16 8、400÷25×75 9、16×25÷16×25 10、552÷69×8 11、600-120÷10 12、(600-120)÷10 13、(466-25×4)÷6 14、(43+32...

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11×22+0.22×3300+330×4.4 =11×22+22×33+33×44 =11×22+22×33+33×2×22 =(11+33+66)×22 =110×22 =2420 或: 11×22+0.22×3300+330×4.4 =11×22+22×33+33×44 =(11+33)×22+33×44 =44×22+33×44 =44×(22+33) =44×55 =2420 .把小数变成正数,灵活运...

(1)94+38+106+62 (2) 125×15×8 (3) 25×32×125 (4)125÷25×8 (5) 125×48 (6)989-186-14 (7)4600÷25÷4 (8)136×101-136 (9)32×37+47×37+21×37 (10)99×77+77 (11 99×8 (12)78×37-37×68 (13)89×99+89 (14)52×15-5×52...

89+124+11+26+48 875-147-23 25×125×40×8 147×8+8×53 125×64 0.9+1.08+0.92+0.1 89+124+11+26+48 875-147-23 147×8+8×53 125×64

350×63+350×37用简便算法 脱式计算 350×63+350×37 =350*(63+37) =350*100 =35000

0.25×32×12.5 =0.25×(4×8)×12.5 =(0.25×4)×(8×12.5) =1×100 =100

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