M1 L11

​Adding multi-digit whole numbers with a strip diagram

By Marlene Morales-Blanco

​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

​	​
​2,3421	​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:

Fill in the Blanks

solve the addition using the standard algorithm

Multiple Choice

solve the addition using the standard algorithm

• 17,721

• 17,841

• 18,000

• 1,741

Fill in the Blanks

Draw a strip diagram to represent each problem. Use numbers to solve.

In September, Liberty Elementary School collected 32,537 cans for a fundraiser. In October, they collected 207,492 cans.

How many cans were collected during September and October?

​Complete Exit Ticket Lesson 11