Curriculum  /  Math  /  2nd Grade  /  Unit 4: Place Value with Numbers to 1,000 & Money  /  Lesson 22

Place Value with Numbers to 1,000 & Money

Lesson 22

Math

Unit 4

2nd Grade

Lesson 22 of 22

Objective

Solve two-step word problems with add to change unknown and take from change unknown.

Student-Facing

I can solve two-step story problems.

Common Core Standards

Core Standards

  • 2.OA.A.1 — Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

Foundational Standards

  • 1.NBT.C.4
  • 1.OA.A.1
  • 1.OA.D.8

Criteria for Success

  1. Solve two-step word problems involving addition and subtraction. 
  2. Represent word problems using equations and tape diagrams.
  3. Use addition and subtraction to solve within 100.

Tips for Teachers

In this lesson students will build on their story problems solving by combining add to and take from change unknown problem types, considered to be middle difficulty subtypes with easier results unknown subtypes. By the end of second grade students should be proficient in these types of two-step word problem combinations with addition and subtraction. If your students need additional support with add-to, take-from or change-unknown problems before beginning the Anchor Tasks for this lesson you can do a warm up with those problem subtypes.

Warm Up

5-10 minutes

Unlock warm-up activities that help you engage every student and prepare them for the day’s lesson with a Fishtank Plus subscription.

Anchor Tasks

15-25 minutes

Problem 1

January had 10 days of snow and February had 18 days of snow. By the end of March there were 37 total days of snow. How many days of snow were there in March?

Purpose

Create a free account or sign in to access the Purpose for this Anchor Problem.

Upgrade to Fishtank Plus to view Facilitation Guidance and Sample Student Response for this Anchor Task.

Problem 2

At the potluck there were 40 vanilla cupcakes. Some were eaten and there were 18 vanilla cupcakes left. If 15 chocolate cupcakes were also eaten at the potluck, how many vanilla and chocolate cupcakes were eaten in all?

Purpose

Create a free account or sign in to access the Purpose for this Anchor Problem.

Upgrade to Fishtank Plus to view Facilitation Guidance and Sample Student Response for this Anchor Task.

Problem 3

At the grocery store there were 40 boxes of cereal. 15 boxes were sold on the first day. After they restocked, there were 55 boxes. How many boxes did they add?

Purpose

Create a free account or sign in to access the Purpose for this Anchor Problem.

Upgrade to Fishtank Plus to view Facilitation Guidance and Sample Student Response for this Anchor Task.

Problem Set

15-20 minutes

Target Task

5-10 minutes

The teacher's lounge has 45 granola bars in it. Teachers eat 21 granola bars over the course of the week. Mr. Moore restocks the granola bars and now there are 32 granola bars. How many granola bars did Mr. Moore add to the teacher's lounge?

Show your work using drawing, numbers, and or words. 

 

Student Response

Additional Practice

Daily Word Problems, Warm Ups, and Center Activities are aligned to the content of the unit but not necessarily to the lesson objective, therefore feel free to use them anytime during your school day.

Word Problems and Fluency Activities

Lesson Map

A7CB09C2-D12F-4F55-80DB-37298FF0A765

Topic A: Understanding and Representing Three Digit Numbers

Topic B: Reasoning with Numbers to 1000

Topic C: Place Value in Action - Money and Word Problems

Request a Demo

See all of the features of Fishtank in action and begin the conversation about adoption.

Learn more about Fishtank Learning School Adoption.

Contact Information

School Information

What courses are you interested in?

ELA

Math

Are you interested in onboarding professional learning for your teachers and instructional leaders?

Yes

No

Any other information you would like to provide about your school?

We Handle Materials So You Can Focus on Students

We Handle Materials So You Can Focus on Students

We've got you covered with rigorous, relevant, and adaptable math lesson plans for free