3.4－1.4= 7.82－7.2= 2.19＋9.1=
10.1－0.89= 0.68＋0.42= 8.1－5.1=
0.728－0.24= 0.8＋0.18= 0.89－0.25=
1－0.98= 0.048＋0.52= 5×400=
19.9+11.1= 187÷1000= 1+3.89=
0.081×10= 75÷10= 0.96÷0.8=
0.8×7＝ 1.5×7＝ 1.32×8＝
0.7×8＝ 10.3×2＝ 5×0.6＝
0.9×0.3＝ 3.5×0.2＝ 2.01×0＝
10×0.05＝ 0.13×7＝ 0.21×100＝
0.7×4＝ 0.05×4＝ 4×0.3＝430-250= 0.17+0.06= 1.02-0.09=
7200÷800= 0.17+0.6= 0.83-0.6=
17×300= 0.98-0.09= 0.2+0.78=
600×700= 10.2+0.02= 0.15+0.7=
670+250= 10.2+0.2= 9.2-6=
8500÷500= 3.2-3.2= 3.7+2.3=
25×100= 3.2-0.32= 2+2.8=
380-290= 0.35+0.5= 0.35+0.63=
3500÷70= 3.1+3= 3.8+0.38=
7500÷250= 3.8+1= 0.95-0.05=
450+780= 3.1+0.3= 3+0.3=
630÷9= 4.5-0.4= 9.5-5=
330×9= 9.53-1.53= 9.5-0.5=
3.5+2.4= 1-0.95= 0.3+0.27=
0.47+0.13= 4.5+4= 4-0.6=
0.95+0.05= 2.5+3.2= 0.74+0.16=
23×100= 9.8-4.8= 480÷40=
0.53÷100= 5.1+2.3= 125×80=
0.078÷10= 0.52+0.4= 70×12=
0.25×100= 3.4-2.8= 0.6-0.37=
0.052×10= 10+0.08= 1-0.75=
0.5×1000= 7.82+0.3= 13.5+6.5=
3.05×100= 1.2-0.8= 21.6-12.6=
63÷100= 0.83-0.5= 0.76+0.14=
80÷1000= 2.7+0.4= 0.72-0.43=
30×100= 0.92-0.2= 3.5+4.8=
3.5+2.4= 5+0.07= 1-0.61=
0.47+0.23= 0.25+0.75= 3.7+0.33=
0.51+0.33= 1-0.6= 8-4.6=
5.8-3.6= 0.52+0.4= 6.45+5.5=
4.5-1.3= 3.4-2.8= 9.53-1.53=
8.8-6.7= 10+0.08= 9.5-7.3=
7.2+0.8= 7.82+0.3= 8.8-6.7=
9.5-7.3= 1-0.95= 3.4-2.8=
0.96-0.35= 9.53-1.53= 0.25+0.75=
1.2-0.8= 0.83-0.5= 2.7+0
12.5×8＝ 2.3×4＝ 3.25×0＝
0.4×50＝ 30×0.1＝ 2.6×3＝
4.1×2＝ 0.35×0.2＝ 7.5×0.1＝