Approximate value of 0.4 x 0.4 + 0.04 x 0.04 + 0.04 is
Answer & explanation
Correct answer: option 1
Calculate each term:
$0.4 \times 0.4 = 0.16$
$0.04 \times 0.04 = 0.0016$
Now add:
$0.16 + 0.0016 + 0.04 = 0.2016$
Approximate value:
$0.2016 \approx 0.20$