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用竖式计算0.912除0.57并验算

把两个数都扩大100倍,列式计算得结果 是3.8

12÷0.9=13.33...

12.6÷0.9=14,竖式计算如下:

12.76×0.7=8.9320.94×2.8≈2.6(保留一位小数)3.76÷1.6=2.35

0.08

原式可转化为 0.912x7.2+0.912x2.8 =0.912x(7.2+2.8) =0.912x10 =9.12

0.8889= _______1_____________________ __1_ ___1___ ___1__ 2.0 + 3.2 + 3.2

0.912÷30=0.0912÷3=0.0304

简便计算. 216+305 25×32 47+236+64 6×(15×9) 402+359 43+78+122+257 25×(26×4) 25×44 354+(229+46) (1)9.26-4.38-2.62 (2)9.26-(4.38+2.26) (3)9.26-(4.38-2.74 (1)4.75-9.64+8.25-1.36 (2)14.529+(2.471-3) (3)38.68-(4.7-2.32) 415-176-24 8....

0.35+0.45=0.8 0.72-0.28=0.44 0.57+0.9=1.47 29×9+29=290 3.8+0.12=3.92 0.6-0.37=0.23 10-0.09=9.91 4.8÷100×10=0.48 5÷1000=0.005 0.5×100=50 101×87=8787 6-0.61-0.39=5 1-0.01=0.99 322-99=223 36×25=900 4.9+0.1-4.9+0.1=0.2

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