Question

±混合运算啊，怎么办？

Answer 1

加减法混合运算首先算括号里的，其次是按照从左到右的顺序计算。 
56+24-35= 78-35+13= 89-45+27=
78-69+56=
23+54-60=
76-68+39=
45-26+49=
96-67+32=
100-68-32=
25+56-67= 78-62+45= 23+58-66= 78-69+63= 77-46+28= 99-65+32= 1
89-34+17= 69-65+78= 28+65-67= 89-64+28= 96-87+22= 77-29+32=
59+24-25= 78-75+13= 99-45+17=
78-69+66=
43+29-60=
86-69+49=
45-29+48=
86-67+31=
100-66-33=
45+36-67= 69-62+45= 23+58-56= 78-49+61= 97-46+38= 99-75+22= 2
79-34+37= 79-65+38= 38+45-67= 89-64+28= 96-77+52= 87-26+35=
36+24-15= 88-35-13= 99-45-27=
77-69+56= 28+66-77= 87-34-27=
33+56-60=
76-58+39=
45-23+49=
93-67+22=
100-64-32=
54+34-25=
87-62+45= 43+38-66= 78-54+63= 76-48+28= 79-65+32= 97-59+21= 3
79-65+18= 38+25-47= 69-44+28= 96-87+22= 76-29+12= 45-27+54=
54+24-35= 68-35+13= 89-45-17=
78-56+34=
65+29-60=
76-69+49=
54-29+36=
98-67+31=
100-34-33=
54+36-67= 65-62+45= 45+43-56= 78-49+61= 79-46+38= 99-75-22= 4
67-34+37= 76-65+38= 32+45-67= 67-34+28= 87-69+52= 67-26+25=
56+24-35= 78-35+13= 89-45+27=
78-69+56=
23+54-60=
76-68+39=
45-26+49=
96-67+32=
100-58-32=
25+56-67= 89-62+45= 23+58-66= 78-69+63= 77-46+28= 99-65+32= 5
89-34+27= 89-65+78= 28+65-67= 98-64+28= 96-87+22= 77-29-32=
59+24-25= 78-75+13= 99-45+17=
78-69+66=
43+29-60=
86-69+49=
45-29+48=
86-67+31=
100-66-33=
45+36-67= 69-62+45= 23+58-56= 78-49+61= 97-46+38= 97-75+22= 6
79-34+37= 79-65+38= 38+45-67= 89-64+28= 96-77+52= 87-62+35=
77-69+56= 28+66-77= 87-34-27=
33+56-60=
76-58+39=
45-23+49=
93-67+22=
100-64-32=
54+34-25=
87-62+45= 43+38-66= 78-54+63= 76-48+28= 79-65+32= 97-59+21= 7
79-65+18= 38+25-47= 69-44+28= 96-87+22= 76-29+12= 45-27+54=
54+24-35= 68-35+13= 89-45-17=
78-56+34=
65+29-60=
76-69+49=
54-29+36=
98-67+31=
100-34-33=
54+36-67= 45-32+25= 45+43-56= 78-49+61= 79-46+38= 99-75-22= 8
67-34+37= 76-55+32= 32+45-67= 67-34+28= 8 7-69+52= 67-26+25=

Answer 2

按优顺序一步一步算，如果有要求简便运算的就简便运算