Math 1st OA W4 D3


Operations & Algebra: "Solving Mixed Problems (+ -)"
ABOUT THIS LESSON: Math Operations and Algebraic Thinking, 1st Grade

Lesson 3 of 5.  Students will determine the missing number that balances an equation (addition or subtraction). The worksheets include one problems page and an answer page. *
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ABOUT THE AUTHOR: Elizabeth Sweet has taught grades 3-5 since 2003. Her awards include County Teacher of the Year (2015). When she’s not busy teaching 4th grade in the American public school system, she enjoys baking, reading, knitting and exploring nature.

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