11-4.07=
3.39+20.73=
★14.79-8.7=
13.2+3=
0.25+0.5=
2.8-0.6=
1.01-0.1=
8.01+0.9=
5.7+4.3=
0.75-0.35=
8.9-6=
0.24+0.67=
0.51+0.19=
3.8+5.2=
2.7-0.27=
3.25+0.75=
4.8+6.2=
0.43-0.34=
1-0.45=
10-0.19=
100+0.97=
1.6-0.9=
9+1.28=
9.36+1.7411 7.2-3.86+2.537.2+2.53-3.86
98.27-0.9998 10米6分米10.06米