Question

use your rounded factors, $4 \cdot 2$, to estimate $3.8 \cdot 2.2$.
$3.8 \cdot 2.2 \approx \square$
$4 \cdot 2$
0.08 0.8 8 80

Explanation:

Step1: Round factors to integers

$3.8 \approx 4$, $2.2 \approx 2$

Step2: Calculate product of rounded values

$4 \times 2 = 8$

Answer:

8