# Adding & Subtracting Groups of Ten

Subject
Resource Type
Common Core Standards
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PDF (Acrobat) Document File

829 KB|14 pages
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Product Description
These practice sheets are designed to help students mentally add and subtract with a two-digit number and a multiple of 10. Students can complete these practice sheets by using concrete models or drawings and strategies based on place value,
properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding/subtracting two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.

Page 3: Adding Groups of 10.
Page 4: Adding Groups of 20.
Page 5: Adding Groups of 30.
Page 6: Subtracting groups of 10.
Page 7: Subtracting groups of 20.
Page 8: Subtracting groups of 30.
Page 9: Adding all groups of 10.
Page 10: Subtracting all groups of 10.
Page 11: Adding two-digit numbers with groups of Ten.
Page 12: Subtracting two-digit numbers with groups of Ten.
Page 13: Mixture of Adding & Subtracting two-digit numbers with groups of Ten.

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Total Pages
14 pages
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