What's the Difference?
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Students use reasoning to find differences from numbers up to 10, using real and virtual calculators and an addition chart as tools. They also play a concentration game.
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Choose the Operation: Plus or minus (up to 100)
Investigate the relationship between addition and subtraction as scholars fill in these number sentences, each of which is missing a symbol. Is it a subtraction or addition equation? There are 20 of these to start, all written...
2nd - 4th Math CCSS: Designed
Solve Subtraction Problems: Using Key Vocabulary
The first step to solving any word problem is understanding what the question is asking. The fourth video in this series discusses key terms associated with subtraction, modeling how to identify these phrases with multiple examples....
5 mins 2nd - 4th Math CCSS: Designed