​Lesson 11: Objective

I will be able to add multi-digit whole numbers using the standard algorithm to solve word problems using strip diagrams.

​23,421

​ 23,421
+ 1,213

Marco kept track of the calories he consumed for three weeks. The first week, he consumed 12,490 calories, the second week 14,295 calories, and the third week 11,416 calories. About how many calories did Marco consume altogether? Which of these estimates will produce a more accurate answer: rounding to the nearest thousand or rounding to the nearest ten thousand? Explain.

​Application Problem

​Concept Development

​Problem 1: 3,134 + 2,493


Problem 2: 40,762 + 30,473


Problem 4:
The Lane family took a road trip. During the first week,
they drove 907 miles. The second week they drove the
same amount as the first week plus an additional 297 miles.
How many miles did they drive during the second week?

​Strategy:

​Complete Exit Ticket Lesson 11