Addition doubles
32 + 50=
52
200 + 200=
400
54-20=
34
986-176 =
810
78 + 19 =
97
57 + 43 =
100
340 + 118
458
89-61=
28
509-176=
333
36 + 64 =
100
87 + 24=
111
790 + 272 =
1,062
90-42=
48
570-176=
394
686 - 259 =
427
82 + 49 =
131
500 + 234
734
50-43=
7
800-176=
624
917 - 261 =
656
99 + 99=
198
686 + 259 =
945
40-18=
22
1,000-123 =
877
1,000 - 521
479