直接写得数:1.2÷3=4.8÷6=1.4×0.5=49÷100=0×9.8=16÷0.8=6.3÷9=0÷0.1=3.2÷0.4=7.9-7=0.42÷7=7.5
直接写得数:1.2÷3=4.8÷6=1.4×0.5=49÷100=0×9.8=16÷0.8=6.3÷9=0÷0.1=3.2÷0.4=7.9-7=0.42÷7=7.53×0...
直接写得数:1.2÷3=4.8÷6=1.4×0.5=49÷100=0×9.8=16÷0.8=6.3÷9=0÷0.1=3.2÷0.4=7.9-7=0.42÷7=7.53×0=3×0.2×0.5=2.7×3.45+3.45×7.3=
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