15 примеров на + и 5 примнров на -

2+3 4+5 1+2 11+43 65+73 3+81 90+11 56+56 72+110 45+3 213+678 321+985 324+1 34+9 14+9 15+15 30-15 9-5 7-5 100-54 23+7

примеры на +                                                                               примеры на -1 + 1                                                                                             19 - 62 + 2                                                                                             20 - 63 + 3                                                                                             21 - 64+4                                                                                                                                                                              5 + 5                                                                                     22 - 6  6 + 6                                                                                            23 - 67 + 78 + 89 + 910 + 1011 + 1112 + 1213 + 1314 + 1415 + 15