Since each irrational number can be represented as infinite decimal, then we can proceed in the same way, as we did when placed decimals on a number line.
π≈3.14, so it is slightly to the right of 3.
Since 4<5<9, then 4<5<9 or 2<5<3. So, 5 is somewhere between 2 and 3 (close to 2, because 5≈2.236).
Similarly, since −64<−50<−27, then 3−64<3−50<3−27 or −4<−50<−3. So, 3−50 is somewhere between -4 and -3 (closer to -4, because 3−50≈−3.684).