300数学整数加法和减法
67-28= 84+9= 29+35= 45+9= 72-17=
58-29= 47+18= 47+29= 76-19=76-38=
26+17= 66-48= 85-56=
72+18= 85+7=
45-36= 72-39=
78-39= 74-37= 68-57=
74+18=
83-49= 83+37= 46+27= 42+59=
78-29=37+18= 47+19= 46-19= 76-18=
36+27= 46-38= 65-26= 25+8= 55+17=
45-16= 42-19=74-18= 44-17= 38-16=
34+58= 53-29= 63+28= 36+17= 53+16=
43-25= 73+14= 36-27= 22+18= 40-17=
52+16= 62-59= 52-34= 82-33= 61-39=
46+27= 56-38= 75-26=45+8= 75+17=
35-16= 42-29=74-68= 64-17= 48-36=
24+58=53-39= 43+28= 56+17= 53+36=
63-25= 73+24= 56-27= 22+28=42-37=
27+16= 62-49= 62-34=62-35=63-49=
52-17= 91-37=36+26= 81-35= 42+13=
77-28=84+19= 39+35= 35+19= 82-33=
68-39= 47+28= 67+29= 84-29=79-28=
53+28=
96-59= 75+17= 54+37= 59+19=
35+17= 60-38= 36-25=
86-58= 42-16=
42-19= 75-59=
24+38= 42-23= 52+23=
63-37=
44+39= 70+19= 16+23= 57-16=
35+17= 50+22= 62+12= 22+55=
46-28=
48-26= 86-45= 70-42=
72-54= 16+27=
43-27= 63+25=
40-12= 83-56=76-37=
54-29=
79-64= 98-48=64+24= 75-55=
56-36= 67-60= 85-50= 42-32=
55+38=
15+56= 69-31= 93-56=
23+32= 42-19=
57-48=
54+29= 62+19= 47+19= 42-17=
86-54= 54+28= 27+36= 65-36=54-45=
35+27= 84-48= 40-29=
48+48= 60+25=
72-45= 46-38=
56-28= 78-69= 72-37=
71-15= 62-56=17-25= 50+22= 62-48=
22+55=
46-28= 48-26= 86-45= 70-42=
53-35= 63+34= 64-45= 32+19=
60-37=
72+26= 52-37= 54-35=
89-37= 51-39=
52-27= 63-27=
63+37= 61-26= 48+23=
28+62=
39+32=
45+15=18+25=
48-4=
80+10=
52+12=
22-22=
62+27=14+27=
66+13=
69+20=49-12=
72+5=27+29=
94-56 =
12+9=
44-18=
63-17=
4+22=
15+63=42-27=33+38=
49+39=71+16=
77+21=
97-83=
71-59=
82+3=
76-65=
63-3=
62+5= 51+15=54+12=
80+8=
73-52=
69+17=
59+30=53+17=
63-7=
40+29=
62+15=
54-13=
84+3=
68-60=
16+13=86+4=
77-48=
11+17=
46+23=
84-1=
18+20=
22+45=61-23=
62+28=
11+49=
13+46=
59+21=
39+34=
34+26=
39+26=
97-39=
39+35=66+14=71-13=
53+8=
43+28=
24+19=
16+58=
46+39=
91-75=
25+26=
72-46=
16+27=
38+37=
34+5=
16+72=
80-54=
16+54=
44+17=
24+18=
54+9=
42+29=
42+16=
17+28=
13+41=
23+11=
55+31=
73-71=
90-35=
45+7=
57+28=
73+11=
86+8=
36+22=22+19=
89+9=57-2=
96-70=
56+33=48-39=55+27=86+8= 66-6= 25+23=