6﹣0.4=
7.52+2.48=
0.73÷0.1=
0÷×=
15×60=
÷=
4-=
24××
13×40=
6﹣0.6=
0.8×0.5=
186+24=
=
①133+284=
②5﹣3=
③276÷3=
④=
⑤=
⑥9.7﹣4.45=
⑦39×=
⑧=
÷ 1 × ÷ 10×