Question

Estimate to the nearest integer square root of 197

Answer 1

Integer, from what I remember, is whole number. So, the way I'd approach this is just go up with with x^2:
1*1=1
2*2=4...
12*12=144
13*13=169
14*14=196
15*15=225
The closet one is 13*13. So that is your integer; 13.