3.48+6.2=
4.9÷0.7=
2.4×5=
8﹣ =
+ =
12× =
310×4=
0÷ =
÷ =
× =
123﹣57=
43=
× = 2× = × = 1.4+2.06=
× ÷7 15× ÷
42÷ 42÷ ÷ ÷