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Common Core: Math
CCLS  Math: 1.NBT.5
 Category
 Number And Operations In Base Ten
 SubCategory
 Use Place Value Understanding And Properties Of Operations To Add And Subtract.
 State Standard:
 Given a twodigit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
9 Results

 Objective: Identify 10 more, 10 less, 1 more, and 1 less than a twodigit number.

 Objective: Use dimes and pennies as representations of tens and ones.

 Objective: Add a pair of twodigit numbers with varied sums in the ones.

 Objective: Add a pair of twodigit numbers when the ones digits have a sum less than or equal to 10.

 Objective: Add a pair of twodigit numbers when the ones digits have a sum less than or equal to 10.

 Objective: Identify 10 more, 10 less, 1 more, and 1 less than a twodigit number within 100.

 Objective: Add a pair of twodigit numbers when the ones digits have a sum greater than 10.

 Objective: Add a pair of twodigit numbers when the ones digits have a sum greater than ten.

 Objective: Add a pair of twodigit numbers with varied sums in the ones.