Question

dear... this week your child is learning how to compare three - digit numbers. your child might see a problem like this: ms. perez drove 234 miles. mr. lee drove 213 miles. who drove more miles? you can model both numbers using quick drawings. drawings for 234 and 213 as shown you can see that both models show 2 hundreds with 2 squares. but the top model shows 3 tens (with 3 lines) and the bottom model shows only 1 ten. so, the top model shows more. you dont have to compare ones, because there are already more tens in the top model. the model shows that 234 is greater than 213, which we write as 234 > 213. so, we know that ms. perez drove more miles. invite your child to share what he or she knows about comparing three - digit numbers by doing the following activity together.

Explanation:

Step1: Analyze the hundreds place

Both 234 and 213 have 2 in the hundreds place, so the hundreds place doesn't determine the larger number.

Step2: Analyze the tens place

234 has 3 in the tens place, and 213 has 1 in the tens place. Since \( 3>1 \), we can conclude that \( 234 > 213 \) without comparing the ones place.

Answer:

Ms. Perez drove more miles because \( 234>213 \).