Simple Addition
1+9=
10
333+21=
354
24-4=
20
542-93=
449
8x8=
64
20+1=
21
253+12=
265
35-2=
33
620-84=
536
10x10=
100
42+2=
44
457+27=
484
209-10=
199
4,231-3,564=
667
200x3=
600
200+7=
5,346+201=
5,547
475-25=
450
9,361-6,220=
3,141
52x9=
468
6,000+2=
6,002
1,894+2,354=
4,248
1,973-3=
1,970
9,999-6,000=
3,999
67x2=
134