直接写出结果．
324﹣298= 260×20= 50×11= 200÷25=
140×50= 270÷30= 620﹣520= 44×25=
3200+590= 3500÷300= 9800÷70= 125×16=
直接写出结果．
324﹣298= 260×20= 50×11= 200÷25=
140×50= 270÷30= 620﹣520= 44×25=
3200+590= 3500÷300= 9800÷70= 125×16=
×
= 4×60%= 0×
=
÷2= 10÷
=
×3.6= 0.875÷0.125=
×15=
÷
=
÷50%= 8×25%=
×0×
=
﹣
= 0.5+
=
×
=
÷3=（
﹣
）×30=
=
=
=
=
= 1﹣
= 2.25+
×
=
=
=
=
=
×8=
×
= 81÷
=
÷
= 63÷
=
÷
=
×
×
= 3×
÷3×
﹣
）×24=
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