Lesson: Two-Step Problems with Bar Models: Numbers up to 100 JUMPMath 2.2 • Part 2 of 2 • Assessment & Practice • US Edition • Math in Focus • Singapore Math • Grade 2 • Volume A • Common Core • Go Math! • Grade 2 • Common Core • enVisionmath2.0 • Grade 2 • Volume 1 • Common CoreMathematics
In this lesson, we will learn how to solve two-step addition and subtraction problems with numbers up to 100 by drawing part–whole and comparative bar models.
Sample Question Videos
Anthony and Liam were seeing who could run farther in 10 seconds. Anthony only ran 18 meters because he tripped over. Liam ran 62 meters farther than Anthony.
How many meters did Liam run?
How many meters did the boys run in total?
James’s sticker book contained 62 stickers. He bought a new pack of 12 stickers and found that he already had 5 of those stickers in his book. He stuck the stickers he did not already have into his book.
Pick one way to calculate the number of stickers in his book now.
There were 68 biscuits in a box. A boy ate 43 biscuits, and his sister ate 12. How many biscuits did they eat, and how many are left?