W.A.L.T: Solve addition and subtraction problems using place value partitioning.
PROBLEMS
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STRATEGY
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ANSWER
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If Jennifer had collected 765 world war! Stamps during the year, how many more stamps does she need to collect to make a total of 1200 stamps
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1200-765=
1000-700=300
200-60=140
140-5=135
300+135=435
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435
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