直接写出得数．2.2+3.8= 14.5﹣9.5= 3.25×4= ×= 1﹣=6×= ÷= += 4÷= ×=
直接写出得数. 4.1×0.5= 7.6×2.5×4= 2.88÷0.4= 1.35÷5= 2.5﹣1.37=+=+=++=+=+=
用竖式计算： 3.2×0.73= 8﹣6.93= 56.7÷0.14=
直接写出得数 8×1.25= 10﹣2.8﹣5.2= 1﹣=﹣= 25×11= 0.07×100= 2.1﹣1.9= 0.27×10=+= 1﹣﹣=+=+=
直接写出得数． 1.3+0.07= 3﹣=+=（+）﹣=+=﹣=+= 10.8﹣3.9﹣4.1=
直接写出得数． 2.85+99= 0.8÷10%= 1.27+7.3== 0.5×1.2= 3÷= 0.6×== 12×==
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