1.8+0.5= 2.5﹣0.1= 4.8﹣0.2= 74+71=
48+10= 24÷12= 68÷0.68= 94.7÷0.1=
61.8÷0.6= 0.8×6.7= 3÷8= 0.12×3=
32=8.2﹣2.8= 3.5÷0.7=
=
=
= 5.3+0.5= 46+18=
8.5﹣1.5= 69+10= 28.8+0.4= 40.5÷0.5=
92.7÷0.3= 0.5×1.3= 16×0.5= 4.4+0.1=
6.1﹣0.1= 3.3+0.6= 33.2÷0.4= 1÷0.25=
1.5×4= 6.5+1.35= 1.3﹣1.2=
=
=
= 5.7﹣1.7=0.35+0.75=
0.2×1.1= 1.6÷0.4= 10÷4= 3.4÷0.2=
52÷13= 57÷19= 3.7﹣0.8= 29+92=
8.2+0.7= 6.5﹣5.6= 4.8÷0.3= 33=
1.25×8=
=
=
=
2.1÷0.3= 3.2×3= 2.8﹣1.8= 0.9×6.2=
直接写得数．
0.77+1.33= 1.4÷9= 1.52= 6
= 98×
=
28
=（49﹣
）×
= 28.26÷3.14= 0.63= 437÷198=
直接写出得数．
20+5.8=
= 40÷12= 0.23=
1.25÷1%=
=
= 30.1÷5.9≈
直接写出得数．
3.8﹣2.9= 960÷80= 2.4+1.6=（
+
）×4=
1.5×
= 24÷
=
÷
=
×
=
直接写数对又快．
2.3+3.57= 8×12.5%= 5.7+11.8+4.3= 1÷100%=
0.99×9+0.99= 40÷9= 12×（
×
）=
×
=
﹣0.5=
×25%=
= 
= 
=
= 
= 
=
= 1.05×4= 268÷14×0=
= 306﹣16= 5.1+0.09=