Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Related Lessons
1st Grade
Word Problems with Addition and Subtraction
Lesson 112
Solve addition and subtraction word problems with a Step-by-Step Visual Model checklist. Understand what the problem is asking to help you solve it. Engage in a Number Talk to find "how many" and to answer a secret question.
1st Grade
Add & Subtract Using 20
Lesson 204
Represent a teen number using a number bond to solve a Mystery Math Mistake. Use Notice and Wonder with a marble game to ask and answer questions about adding and subtracting within 20. Use a Double 10-frame & number line to represent and practice adding and subtracting within 20. Math Mights was adapted from IM K-5 Math™ ©2021 by Illustrative […]
1st Grade
Add & Subtract Using 10
Lesson 203
Represent 10 using a number bond and 10-frame with a missing addend. Use Notice and Wonder with a 10-frame, connecting cubes, and place-value cards to ask and answer math questions. Then, represent teen numbers using addition and subtraction equations and one 10. Math Mights was adapted from IM K-5 Math™ ©2021 by Illustrative Mathematics®, released under the Creative Commons Attribution […]
