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Operations and Algebraic Thinking Work with addition and subtraction equations. 8Determine the unknown whole number in an addition or subtraction equation relating to three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = ?– 3, 6 + 6 = ?.

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- solving-mixed-problems-within-20 worksheet

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Solving Mixed Problems within 20 (+ -)

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× Description:
"This worksheet is designed to enhance children's mathematical skills by solving mixed addition and subtraction problems. Comprising of 20 exclusive problems such as '4 + ? = 9', '14 = ? + 7', and '10 = 15 - ?', it provides a fun and engaging way to grasp basic arithmetic. Furthermore, this versatile worksheet can be customized for individual learning needs, converted into flashcards for interactive study, and effectively used for distance learning, promoting dynamic ways to master math."

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