Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
Standard Type
Michigan State Math StandardsRelated Lessons
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1st Grade
Story Problems and Equations
Lesson 318
Join Mrs. Markavich with a Mystery Math Mistake - see if you can help D.C. and Value Pak with an addition mistake! We'll also solve word problems and write equations to match.
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1st Grade
Story Problems with Length
Lesson 316
Join Mrs. Markavich with a Mystery Math Mistake - see if you can help Professor Barble with his word problem. We'll also solve measurement word problems and comparie lengths.