文档介绍：50-24= 57+16= 84-19= 33-17= 17+65=
37+27= 81-19= 53+28= 40-12= 31-14=
94-56= 47+46= 80-44= 82-29= 84-25=
71-42= 84-55= 72-17= 18+65= 53-37=
100-49= 18+55= 55-37= 50-14= 38+29=
14+77= 85-29= 68+15= 100-17= 85-38=
100-19= 37-26= 17+65= 68+15= 82-47=
50-17= 58+13= 38+53= 28+67= 14+47=
67+24= 100-29= 24+28 = 86-38= 78-59=
94-69= 72-35= 78-33= 100-72= 100-25=
86—43= 64+14= 39+28= 64-14= 45+19=
17+48= 45-29= 46+16= 29+44= 100-29=
52-19= 45+52= 53-15= 90-61= 90+5=
34+58= 85-18= 51-23= 100-25= 75+16=
73+18= 83-15= 90-38= 90-16= 15+19=
49+45= 43+57= 100-28= 39+47= 74-29=
74-29= 43+38= 55+19= 64-17= 70-41=
72-16= 71-19= 98-79= 29+12= 64-17=
93—59= 29+12= 26+65= 31-13= 62-45=
16+79= 70-11= 35+29= 75-58= 60-29=
61-37= 60-25= 58+35= 72-57= 64-26=
50-23= 72-26= 64-53= 33-19= 42-17=
33+48= 42+29= 68+24= 33+29= 86-47=
86+14= 86-58= 95-46= 57+27= 37+58=
47+25 = 46+15= 52-29= 39+14= 25+58=
39+37= 25+64= 68-39= 37+39= 52+38=
64-26= 92-63= 55+39= 23+19= 29+43=
55—39= 29-26= 68-53= 58-55= 46+14=
97-39= 37+39= 47+25= 46+15= 52+38=
39+28= 25+58= 68+14= 37+39= 52-29=
64-26= 92-63= 55+38= 23+19= 29+43=
100-26= 29+43= 92-78= 28+16= 100-53=
24+58= 46+14= 97-39= 45+28= 46-27=
44+18= 97-18= 53-17= 68—18= 100-28=
68-49= 68-39= 39+42= 96-59= 94-88=
59+37= 76+15= 66-29= 24+68= 99—38=
75-28= 52+55= 68-56= 57+37= 83-14=
39+55= 74-39= 83+15= 38+19= 63+49=
29+53= 27+46= 48+17= 83-65= 26+48=
49+19= 73+16= 13+59= 90-25= 39+42=