15×8= 240÷8= 800×6= 0÷320=
600÷3= 60×7= 540÷9= 250×4=
+= -= += 1-=
3.2-1.9=
5.8+1.2=
5.7-2.8=
6.1+5.9=
6.9+4.6=
6.9+6.5=
4.6-3.5=
9.5+5.8=
2.8-1.2=
7.2-5.8=
2.4-0.8=
9.8-5.9=
8.2-5.8=
5.6-3.9=
5.4-2.9=
4.8+3.9=
2.7+2.4=
7.8+2.6=
8.6-2.7=
5.8+2.6=
4.5+2.9=
4.1-1.9=
6.1-1.7=
8.2-5.2=
8.3-3.8=
6.5+1.2=
4.4-3.2=
1.7-0.9=
4.8-0.7=
5.0-1.9=