2 digit addition
58 + 47 =
105
75 - 20 =
55
458 - 234 =
224
381 + 117 =
498
32 + 29 =
61
52 - 36 =
16
683 - 527 =
156
138 + 429 =
567
59 + 56 =
115
86 - 44 =
42
513 - 146 =
367
476 + 157 =
633
75 + 37 =
112
83 - 29 =
54
609 - 381 =
228
299 + 587 =
886
98 + 87 =
185
90 - 48 =
42
900 - 487 =
413
537 + 784 =
1,321