直接写出结果．
960÷30= 1.5×40=60 9﹣3.4= 15÷2.5÷4=
×25=
÷
=
+
= 1﹣
+
=
直接写出得数
18×40= 910÷70= 6.3÷0.1= 36×25%= 100×10=
35×0.1= 75﹣75×0.1=
=
=
=
直接写出得数．
28+46= 5.7+2.35=
=
=
= 50×40=
1﹣0.9=
=
口算：
200﹣102= 0.29÷10= 0.33= 0.32﹣0.2=
7.9÷100%= 2.52=
×
= 36÷
=
450﹣140= 25÷7= 900+238= 600﹣9×8=
90﹣7×5= 26+30﹣28= 48÷（2+4）= 780﹣772=
26+24= 80﹣30= 78﹣26=
=
= 0.25×2.69×4= 10﹣2.87﹣7.13=
÷24=
3÷
= 0.87﹣0.49 4.9×0.7=
=
=
=
=
=
（25+4）×4= 12.37﹣3.25﹣6.75= 3/14×6= 0.51÷17=
14﹣7.4= 5.2÷1.3= 25×12=
=
= 2.5﹣2= 36﹣29= 120÷4=
300+25= 630﹣30= 4×50= 15.9+10.8=
26×13= 24÷4+56÷4= 8﹣2.5= 12×2.5=
2吨50千克= 吨．
