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Common Core: Math
CCLS  Math: 1.NBT.2
 Category
 Number And Operations In Base Ten
 SubCategory
 Understand Place Value.
 State Standard:
 Understand that the two digits of a twodigit number represent amounts of tens and ones. Understand the following as special cases:
18 Results

 Objective: Celebrate progress in fluency with adding and subtracting within 10 (and 20). Organize engaging summer practice.

 Objective: Celebrate progress in fluency with adding and subtracting within 10 (and 20). Organize engaging summer practice.

 Objective: Add and subtract multiples of 10 from multiples of 10 to 100, including dimes.

 Objective: Represent up to 120 objects with a written numeral.

 Objective: Count to 120 in unit form using only tens and ones. Represent numbers to 120 as tens and ones on the place value chart.

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

 Objective: Write and interpret twodigit numbers to 100 as addition sentences that combine tens and ones.

 Objective: Use the place value chart to record and name tens and ones within a twodigit number up to 100.

 Objective: Interpret twodigit numbers as tens and ones, including cases with more than 9 ones.

 Objective: Compare quantities and numerals from left to right.

 Objective: Compare two quantities, and identify the greater or lesser of the two given numerals.

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

 Objective: Write and interpret twodigit numbers as addition sentences that combine tens and ones.

 Objective: Interpret twodigit numbers as either tens and some ones or as all ones.

 Objective: Use the place value chart to record and name tens and ones within a twodigit number.

 Objective: Compare the efficiency of counting by ones and counting by tens.

 Objective: Solve addition and subtraction problems decomposing and composing teen numbers as 1 ten and some ones.

 Objective: Identify 1 ten as a unit by renaming representations of 10.