口算.
3×0.3= 5×0.24= 0.38+3.8= 1﹣0.09=
13.5×0.1= 0.99+0.1= 1×2.5﹣1×2.5= 0.8+1.3﹣0.8+1.3=
口算.
3×0.3= 5×0.24= 0.38+3.8= 1﹣0.09=
13.5×0.1= 0.99+0.1= 1×2.5﹣1×2.5= 0.8+1.3﹣0.8+1.3=
试题篮
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