Question

Estimate each of the following using general rule:

$12904+2888$

Answer 1

Estimating the numbers and their sum:

$12904+2888$

On rounding off the numbers to thousands we get

$12904$ rounds off to $13000$

$2888$ rounds off to $3000$

Consider

$$\begin{gathered} 12904+2888 \\ =13000+3000\mathbf{\left(}\mathbf{approximate}\mathbf{\right)} \\ =16000 \end{gathered}$$

Hence, $12904+2888$ is $16000$