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小学脱式计算简便方法里最难的

360÷[(12+6)×5] 288÷[(26-14)×8] 500×6-(50×2-80) (105×12-635)÷25 864÷[(27-23)×12] (45+38-16)×24 500-(240+38×6) [64-(87-42)] ×15 (845-15×3)÷1612×[(49-28)÷7] 450÷[(84-48] )÷12 (58+37)÷(64-9×5) 9...

脱式计算。 408-12×24 (46+28)×60 42×50-1715÷5 32+105÷5 (108+47)×52 420×(327-238) (4121+2389)÷7 671×15-974 469×12+1492 405×(3213-3189) 5000-56×23 125×(97-81) 6942+480÷3 304×32-154 20+80÷4-20= 100÷(32-30)×0= 25×4-1...

408-12×24 = 408 - 288 = 120 (46+28)×60 = 74 x 60 = 4440 42×50-17 = 2100- 17 = 2083 32+105÷5 = 32 + 21 = 53 420×(327-238) = 420 x 89 = 37380 (4121+2389)÷7 = 6510 ÷7 = 930 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 0.8×[(10...

简便运算: 1) 500+(407+100) 2) 386+382+114 3) 42+(91+158+109) 4) (87+103+113)+97 5) (246+387+154)+13 6) 49+(71+151+129) 7) 255+(79+45) 8) (169+39+131)+261 9) 219+175+181+225 10) 14+498+486

脱式计算题是指一种需要用递等式计算的题目,每行计算必须要等号在前,结果在后. 举个例子: 99+1-35*2 = 99+1-70 = 100-70 = 30 需要注意的地方: 必须由左到右,且按照“先乘除后加减”的法则运算,同时依次按先算小括号、中括号、大括号里的数.可以...

8×7分之4÷[1÷(3.2-2.95)] =8×4/7÷[1÷0.25] =8×4/7÷4 =8/7 2700×(506-499)÷900 =2700×7÷900 =18900÷900 =21 33.02-(148.4-90.85)÷2.5 =33.02-57.55÷2.5 =33.02-23.02 =10 (1÷1-1)÷5.1 =(1-1)÷5.1 =0÷5.1 =0 18.1+(3-0.299÷0.23...

1、 125+25×6 =125+150 =275 2、 (135+75)÷(14×5) =210÷70 =3 3、 120-60÷5×5 =120-60 =60

152+67-52+33 =152-52+67+33 =100+100 =200 199*7+7 =7(199+1) =7*200 =1400

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