Addition
10+9
19
10-2
8
5
123+3
126
320+680
20+40
60
100-20
80
100/2
50
100x5
727-183
544
350+100
450
560-100
460
1300/2
650
100-89
11
769/2
384
1000+120
1120
1000-100
900
20000/100
200
781/6
130
977+7,881,785
7,881,785
1001+678
1679
13000-10000
3000
100000/5
20000
631-171
460
7605-7526
79