Subtracting 2 digit numbers
38-24
14
200-100
100
2,000-1,999
1
345+321
666
1,467+3,987
5,454
45-29
16
200-154
46
4,098-2,934
1,164
456+341
797
3,674+5,285
8,959
68-41
22
356-234
122
5,987-3,539
2,448
497+289
786
4,657+3,698
8,355
84-28
56
987-298
689
7,978-4,908
3,070
636+474
1,110
6,274+7,692
13,966
97-63
34
283-146
137
9,000-8,895
105
846+693
1,539
7,935+4,826
11,761