直接写出得数．1﹣= 4×= 10÷= 72÷36%=86%+1= 0.1÷1%= 4×2.5%= 4.5﹣75%﹣=
直接写出得数． 0.42×0.5= 0.51÷1.7= 5.2÷0.13= 99×1.01= 13.5﹣2.8﹣7.2= 32.8+19= 1.06×0.4=+= 1﹣= 25×0.32×125=
口算．+=﹣=+=﹣=+=+=﹣= 2﹣= 1﹣﹣=
直接写出得数．﹣=+=+=+= 1﹣=﹣= 3+=﹣= 3﹣1=+=+=+3=
．
直接写出得数．﹣= 0.7﹣0.62= 12÷25== 10=+×0= 13×= 10=
= 4×
= 10÷
= 72÷36%=
=
+
=
= 25×0.32×125=+== 25×0.32×125=
+
=
﹣
=
+
﹣
=
+
+
=
﹣
= 2﹣
= 1﹣
=
﹣
=
+
=
+
=
+
=
=
﹣
= 3+
=
﹣
=
+
+
=
+3
=
．
﹣
= 0.7﹣0.62= 12÷25=
=
=
+
×0= 13
×
= 10
=
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