Addition
473+427=
900
452-121=
331
2X2=
4
2+2+2+2=
4X2=8
400+600=
1,000
476+134=
610
765-457=
308
5X5=
25
3+3+3=
3X3=9
545-298=
247
167+654=
821
348-299=
49
3X2=
6
5+5+5=
3X5=15
3+3+3+3+3=
5X3=15
645+876=
1,521
423-368=
55
5X8=
40
2+2+2+2+2+2=
2X6=12
1,457+4,289
5,746
897+365=
1,262
1,432-698=
734
10X10=
100
5+5+5+5+5+5+5+5+5+5=
5X10=50
45+37+21+19+11=
133