32×20=
=
51×59≈
50×40=
8.2﹣6=
3+3.5=
2.1+7.9=
89×12≈
12.33+15.74
12.56-7.85
9.2+4.7=
12-3.48=
2.9+3.1=
8.3-4.9=
36.8-5.9=
2.96+5.04=
7.3+6.5=
4.5+3.7=
20×50=
0×105=
33×20=
240÷6=
606÷3=
0.4+0.85=
4.3+2.5=
6.7-6.2=