5.7+8.23=
4.67+7.5=
8.65-6.31=
10-7.64=
13.6+8.46=
0.99+1.1=
15.5+6.8=
9.63+8.5=
7.07-3.45=
2.62+4.66=
8.54-5.96=
8.7+1.3=
0.7+0.9=
0.8+0.6=
8.24+3.76=
4.1-3.8=
14+0.78=
14.6-0.34=
1.3+8.56=
0.8-0.45=
0.8-0.55=
4-0.04=
1-0.03=
30.5+3.05=
0.78+2.2=
5-0.08=
3.25+0.75=
2.5+7.5=
70×4=
90×6=
21×4=
900×8=
6×5+2=
29×1=
6×11=
22×3=
7×400=
4×9+3=
①4×35=
②305×2=
③6×270=
④642÷6=
⑤*426÷6=
⑥*807÷4=
①92÷4=
②28×3=
③68÷2=
④162×8=
⑤204×4=
⑥510×9=