Place Value and Addition (Adding decomposed values)

By 21 Aug 23:36
4 slides
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Place Value and AdditionAdding Decomposed Values
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Solve:? = 342+ 576
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Does it Matter?Jon added 274 and 345. He first added the ones, then the hundreds and last the tens. He came up with 619. Is he correct? How do you know? Does is matter which values he adds first?
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Solve? = 628 + 592

How do you know? (Write WHY)

Slides in Place Value and Addition (Adding decomposed values)

Adding Decomposed Values
? = 342+ 576
Jon added 274 and 345. He first added the ones, then the hundreds and last the tens. He came up with 619. Is he correct? How do you know? Does is matter which values he adds first?
? = 628 + 592 How do you know? (Write WHY)
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