119. Add the approximate numbers:

$$
14.5+113.76+12.783+11.2161
$$
Solution. We round all numbers to the least precise number $(14.5)$, leaving an extra digit, and perform the addition:

$$
14.5+113.76+12.78+11.22=152.26
$$

Rounding the extra digit, we get the answer: 152.3.

120-131. Perform operations with approximate numbers: