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0.56x7.8%0.56x5.8脱式计算

12.5x0.56x0.4x0.8x1250 =(12.5×0.8)×(0.4×1250)×0.56 =10×500×0.56 =5000×0.56 =280

125×56脱式计算- 125×56 =125*8*7 =1000*7 =7000

3.14×102 = 3.14x(100+2) =3.14x100+3.14x2 =314+6.28 =320.28 0.125×7.41×80 = 0.125x80x7.41 =10x7.41 =74.1 (3.2+0.56)÷0.8 =3.2÷0.8+0.56÷0.8 =4+0.7 =4.7

0.56除以8等于多少用分数的脱式计算来解答 解: 0.56÷8 =56/100×1/8 =7/100

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...

(10-1.35)×0.21 =2.1-0.2835 =1.8165 0.56×7.4-6.4×0.56 =0.56×(7.4-6.4) =0.56×1 =0.56

脱式计算如下: 49×102-2×49 125×76×8 125×56 302×99+302145×89+145×21 72×9867×5×2 25×(78×4)72×125 25×36 76×102 99×35 (25+12)×456×27+27×44 56×99+56125×25×8×4 25×32×125 125×64 125×47-47×25 201×316 997×7+2187×470+870×53 ...

(1)13.7×0.125×8,=13.7×(0.125×8),=13.7×1,=13.7;(2)0.8×[13-(3.12+5.28)],=0.8×[13-8.4],=0.8×4.6,=3.68;(3)102×0.56,=(100+2)×0.56,=100×0.56+2×0.56,=56+1.12,=57.12;(4)1.53×1.7+0.47×1.7,=(1.53+0.47)×1.7,...

2012年1月28日星期六一、口算题小数加法:0.3+1.5=2.5+9.8=7.6+1.3=4.4+5.7=2.3+7.7=5.7+3.1=7.69+2.31=9.16+2.64=5.68+12.22=16.8+16.5=小数减法:6.8-3.8=4.26-3.71=0.88-2.12=5.34-69.21=68.4-61.5=9.58-3.7=18.94-5.66=15.69-9.78=115-68.59...

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