345﹣145÷5= 4035﹣（3035﹣387）= 32×4+26×3= ．
计算．﹣﹣=﹣﹣=+﹣=
直接写出得数． ①= ②= ③= ④= ⑤= ⑥= ⑦= ⑧0.52= ⑨= ⑩1+2÷3=
直接写出结果﹣= 270÷18= 2÷= 10×10%= 5﹣0.25+0.75= ：= 7×÷7×= 042﹣0.32= 341﹣103= 1÷×=
直接写得数 ①+= ②1﹣0.25= ③0.72÷0.6= ④125×8= ⑤25×17×4= ⑥13×10.2=
脱式计算，能简算的要简算． ①②③ ④⑤⑥15×4.6﹣46×0.5．
﹣
﹣
=
﹣
﹣
=
+
﹣
=
= ②
= ③
= ④
= ⑤
=
= ⑦
= ⑧0.52= ⑨
= ⑩1+2÷3=
﹣
= 270÷18= 2÷
= 10×10%= 5﹣0.25+0.75=
=
7×
×
=
+
= ②1﹣0.25= ③0.72÷0.6=
②
③
⑤
⑥15×4.6﹣46×0.5．
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