口算.
7.5+9.2= 9﹣2.7= 16﹣0.9= 2.6×0.3= 4.5÷0.9=
8.5×10= 5.2÷0.2= 1.2×6= 7.9÷0.1= 7.6×4=
4.5÷3= 0.65÷0.1= (1.5+0.25)×4= 3×0.2×0.5= 12﹣6.5﹣3.5=
口算.
7.5+9.2= 9﹣2.7= 16﹣0.9= 2.6×0.3= 4.5÷0.9=
8.5×10= 5.2÷0.2= 1.2×6= 7.9÷0.1= 7.6×4=
4.5÷3= 0.65÷0.1= (1.5+0.25)×4= 3×0.2×0.5= 12﹣6.5﹣3.5=
试题篮
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