Question

Pedro's book weighs 194 pounds, and Blanca's book weighs 177 pounds. Estimate how much more Pedro's book weighs than Blanca's.

a) 10 lbs
b) 15 lbs
c) 20 lbs
d) 25 lbs

Answer 1

To estimate the difference in weight between Pedro's and Blanca's books, round each weight to the nearest ten and subtract. Pedro's book weighs approximately 10 pounds more than Blanca's book when estimated.

Step-by-step explanation:

The question asks us to estimate how much more Pedro's book weighs than Blanca's. To estimate, we can round the weights to the nearest ten and then subtract. Pedro's book weighs 194 pounds, which we round to 190 pounds for estimation. Blanca's book weighs 177 pounds, which we round to 180 pounds for estimation.

Now, subtract Blanca's estimated book weight from Pedro's:

• 190 pounds (Pedro's rounded book weight)
• -180 pounds (Blanca's rounded book weight)

Pedro's book weighs approximately 10 pounds more than Blanca's after rounding each to the nearest ten and estimating the difference. Therefore, the correct answer is (a) 10 lbs.