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Zero Problem for Two Digit Addition

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3 8 +1 9 7 1 Zero Problem for Two Digit Addition - Step 1 Some students want to write “50” in the tens place instead of “5”. 50 This is a strategy to address that specific problem.

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3 8 +1 9 7 1 Zero Problem for Two Digit Addition - Step 2 First, challenge the students about the place value of the zero. 50 “The ‘5’ has a home – ten’s place.” “The ‘7’ has a home – one’s place.” Ask the question: “What is the place (or home) of the zero?”

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3 8 +1 9 50 7 Zero Problem for Two Digit Addition - Step 3 Next, tell the student to “stretch the problem” and keep the zero in it’s proper place – the one’s place 3 8 +1 9 7 5 0 5 0 5 7 5 7

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Remember Only share this with students who struggle with the place value of the zero

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