Question

РЕШИТЕ ВСЕ ПЛИИЗ!!!!!

Answer 1

#15
1) 27+4=31; 83-9=74; 64-7=57; 5+48=53;
42-6=36; 15+8=23; 21-5=16; 7+93=100
2) 82-7=75; 94-6=88; 73-7=66; 84-7=77;
63-6=57; 52-8=44; 96-8=88; 56-9=55.

#16
35+8-20=23
41-6+30=65
70-(10+7)=53
50+(30-6)=74
60-7=53
100-8=92

Answer 2

15.
1)27+4=31
   42-6=36
83-9=74
15+8=23
64-7=57
21-5=16
5+48=53
7+93=100
2)82-7=75
63-6=57
94-6=88
52-8=44
73-7=66
96-8=88
84-7=77
56-9=47
16.
35+8-20=23
41-6+30=65
70-(10+7)=53
50+(30-6)=74
60-7=53
100-8=92