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9.8÷0.36坚式计算.

列式计算为 0.36×8.9=3.204 所以原式的计算结果为3.204

21.36÷0.8-12.9 =26.7-12.9 =13.8 这是一道小数除法的混合运算

21.36÷0.8-12.9 =213.6÷8-12.9 =26.7-13+0.1 =13.8

0.36×10╱9-0.36×8╱9 =0.36*(10/9-8/9) =0.36*2/9 =0.04*2=0.08

21.36÷0.8-12.9 =26.7-12.9 =13.8

解:0.36÷9=0.04, 3.97-2.45=1.52, 16×25=400, 5.2+3.8=9, 8.282÷8.2=1.01, 10-0.87=9.13, 4.3+1.8=6.1, 18.9-9.8=9.1, 0.8÷0.1=8, 0.3+0.36=0.66, 1.14×0.2=0.228, 7.8÷3=2.6, 0.8×15=12, 0.125×8=1, 4-1.08=2.92, 9×1.8=16.2...

(1)96÷(15.4-12.2),=96÷3.2,=30;(2)9÷[0.3×(8-6.5)],=9÷[0.3×1.5],=9÷0.45,=20;(3)0.175÷0.25÷0.4,=0.175÷(0.25×0.4),=0.175÷0.1,=1.75;(4)0.175÷0.25×4,=0.7×4,=2.8;(5)0.36÷[(6.1-4.6)×0.8],=0.36÷[1.5×0.8...

(1)96÷(15.4-12.2),=96÷3.2,=30;(2)9÷[0.3×(8-6.5)],=9÷[0.3×1.5],=9÷0.45,=20;(3)0.175÷0.25÷0.4,=0.175÷(0.25×0.4),=0.175÷0.1,=1.75;(4)0.175÷0.25×4,=0.7×4,=2.8;(5)0.36÷[(6.1-4.6)×0.8],=0.36÷[1.5×0.8]...

21.36÷0.8-12.9 =21.36÷4/5-12.9 =21.36×5/4-12.9 =5·34×5-12.9 =26·7-12.9 =13·8

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