0.4×8=
7.3-2.3=
3.6÷9=
0.01+0.9=
0.07×100=
1.5×6=
2−59=
23+23=
12×18=
47×21=
213+23= 34 × 43 = 0.8× 58 =
1- 513 - 713 = 100÷2.5= 2.5-2.5÷5=