0.9×3＝ 3.5＋2.6＝ 3.5÷7＝ 0.12÷6＝
45-4.5= 0.1÷0.01= 0.2×5.5= 6.3+3.7=
20－6.9= 13.84－5.8= 5.4＋2.34= 1.25×8＝
23.7×0.01= 1.5×4= 5.1÷17= 8.4÷4.2=
4.5×2= 3.4×0.4= 12.6－0.9= 2－1.08=
1.2÷0.04= 0.42÷7= 6.8＋8.6= 0.9＋2.01=
8.9+0.11= 1÷0.04= 1-0.01= 5.6÷8＝
二、综合训练（72分）
8.1－2.2＝ 2.19＋9.1＝ 1.8÷0.9×0.5＝
7.8＋0.22＝ 4.5÷0.9＝ 7.3－1.3+6.7＝
0.35×0.2＝ 4.8÷0.16＝ 6.8－2.4÷3=
2.5×4＝ 0.9＋2.01＝ 1－0.1×0.1＝
1.5÷0.03＝ 12.6－0.9＝ 2.5＋2.4－2.5＋2.＝
0.55＋2.45＝ 24×0.25＝ 0.8＋0.2—0.8＋0.2＝
0.25×400＝ 6.3×101＝ 1.5＋2.26 ＋0.5=
0.4×0.02＝ 3.5＋7.5＝ 4×(1.5＋0.25) ＝
1.23÷3＝ 2.4×2.5＝ 1.2×0.4＋0.4×1.2＝
16÷1.6＝ 0.9÷0.01＝ 40×.370×.25＝
7÷0.25= 3.6×0.25= 12.5×2.5×3.2＝
3÷0.05＝ 1.2÷0.04＝ 1×0.4÷1×0.4＝
1.1-0.001= 0.42÷7＝ 37.2×99＋37.2＝
0.12÷6＝ 0.8×1.25= 0.2×0.5÷0.2=
0.9×3＝ 3.5＋2.6＝ (5.25－4)×8＝
6.5×0.02= 12÷300= 3+4.5-3+4.5=
8.2+0.8= 6.74÷0.01= 0.8×3.98×1.25=
5.4÷0.18= 6.007-5.98= 0.4+0.8-0.4+0.8=
1.25×8.8= 12.5×0.1= 1.2×0.5÷1.2×0.5=
7.8-0.08= 3.5×0.4= 0.25×2.4×4=
10÷0.05= 1.8×0.5= 99×0.25×4=
7.2-0.95= 2.6+3.8= 72.81÷1000×100＝
21.3÷3＝ 3.5－1.4＝ 23.7×0.01×100=
72.81÷10＝ 4.9×2= 3.86＋7.23+6.23=