3.6+0.2=3.8
13×20=260
12.6+4.2=16.8
22.7-6=16.7
10-4.6=5.4
12.5+7=19.5
50×40=2000
46.5-23.4=23.1
320×2=640
124÷4=31
8.5-0.3=8.2
22×3=66
3.5-0.8=2.7
13×40=520
78-69=9
12.5+0.18=12.68
34-2.5=31.5
29-3.5=25.5
13.6-12.5=1.1
74-27=47
1
8 +
4
8 =
5
8
7
10 -
3
10 =
2
5
1-
1
6 =
5
6
1-
4
9 =
5
9
1
5 +
4
5 =1.