Addition
299 + 300
599
940-20
920
7x7
49
9x9
81
6x7
42
1,500+ 908
2,408
789-292
497
10 x 3
30
8x 3
24
6 x 4
24
2,698+3,222
5,920
1,536-899
637
9 x 7
63
5 x 9
45
6 x 9
54
16,823+782
17,605
25,633-25,000
633
11 x 5
55
11 x 7
77
11 x 6
66
12,568+8,444+500
21,512
8,620-999
7,621
12 x 7
84
12 x 8
96
12 x 6
72