subtract
15-6=
9
Square root of 225
15
-1-6=
-7
12+6=
6
2x4=
47-21=
26
Square root of 81
9
-23-4=
-27
63+7=
70
3x5=
15
163-99=
64
Square root of 144
12
-54-34=
-88
1256+6546=
7802
154x8=
1232
763-213=
550
Square root of 9
3
-158-67
-225
5676+3475=
9151
9748x673=
6560404
1749-736=
1013
Square root of 1,416,100
1190
-1353-54=
-1417
43434+7565=
50999
67743x61=
4132323