4: Advanced Counting - Addition and Subtraction

 

Juanita has 8 coloured pencils. She gets 5 more coloured pencils. How many does she have now?


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Student: Eight... nine, ten, eleven, twelve, thirteen.

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Students at the Advanced Counting stage understand that the end number in a counting sequence measures the whole set and can relate the addition or subtraction of objects to the forward and backward number sequences by ones, tens, etc.