Question

if mr. pérez asked his students to estimate the problem below by rounding each number to the nearest whole number, which of the following is the best estimate?13.4 + 0.65A. 15B. 14C. 13D. 17

Answer 1

Given: An expression

$13.4+0.65$

Required: To round off each number to the nearest whole number and to find the sum of the given expression.

Explanation: To round off a number to the nearest whole number we jump to the whole number closer to it.

So 13.4 will be rounded off to 13 since it is the closest whole number to 13.4. Similarly, 0.65 will be rounded off to 1. Hence

$\begin{gathered} 13.4+0.65\approx13+1 \\ =14 \end{gathered}$

Final Answer: Option B is correct.