Practice solving problems like "___ - 45 = 27" where you have to figure out the missing value in an addition or subtraction equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video tutorial, or receive hints.

Concepts

addition word problems, subtraction word problems, addition, subtraction

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Additional Tags

problem solving with addition, problem solving with subtraction, 2.oa.a.1 word problems, find the missing number (addition and subtraction within 100), khan academy

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Classroom Considerations

• Knovation Readability Score: 1 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional|practice

Common Core

2.OA.A.1 1.OA.A.1 1.OA.A.2 2.MD.B.5