1.NBT.5 (Mathematics)
Standard Identifier:
1.NBT.5
Content Area:
Mathematics
Grade:
1
Domain:
Number and Operations in Base Ten
Cluster:
Use place value understanding and properties of operations to add and subtract.
Standard:
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
Use place value understanding and properties of operations to add and subtract.
Standard:
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
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