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3.6X0.46,列竖式计算并验算

27.6×0.45=12.42 3.78÷3.6=1.05 1.79÷3.6≈0.5 1.2×0.415≈0.50

0.46÷0.4X3.6÷0.4 =(0.46÷0.4)×(3.6÷0.4) =1.15×9 =10.35

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