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35×22脱式计算的简便算法

35×2×11 =70×11 =770

原式=9×11×2×11+3×11×4×11 =(9×2)×(11×11)+(3×4)×(11×11) =18×121+12×121 =(18+12)×121 =30×121 =3630楼上说的不对

276+228+35 =276+224+(4+35) =500+39 =539 你好,本题已解答,如果满意 请点右下角“采纳答案”。

(500-10)✘0.35 =500✘0.35-10✘0.35 =175-3.5 =171.5

脱式计算

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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...

(99加1)乘35

(1)24×10.5-3549÷39,=24×(10+0.5)-91,=240+12-91,,=252-91,=161;(2)710÷[(35?14)×12],=710÷[(1220-520)×12],=710÷[720×12],=710÷215,=710×521,=16;(3)2-58÷2528-310,=2-58×2825-310,=2-710-310,=2-(710+310),=2-1...

50-(22-25) =50-(-3) =50+3 =53 35+27+1 =62+1 =63

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