Maryland College and Career-Ready Standards
MD.MA.2.NBT. Number and Operations in Base Ten (NBT)
2.NBT.A. Understand place value.
2.NBT.A.1. Major Standard: Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones.
2.NBT.A.1.1. Ability to use base ten manipulatives (e.g., base ten blocks, Digi-Blocks, stacks of cubes, bundles of sticks, place value arrow cards).
2.NBT.A.1.2. Knowledge of the value of each place in a number.
2.NBT.A.1.3. Knowledge of the value of a digit in a specific place.
2.NBT.A.1.4. Knowledge that the placement of a digit affects the value of that digit.
2.NBT.A.1.5. See 2.NBT.A.1a & b for additional skills and knowledge that are needed for this Standard.
2.NBT.A.3. Major Standard: Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
2.NBT.A.3.1. Knowledge of the value of digits within a multi-digit number.
2.NBT.A.3.2. Knowledge of and ability to represent numbers using concrete materials (e.g., base ten blocks, Digi-blocks, place value arrow cards) as well as written numerals and number words.
2.NBT.B. Use place value understanding and properties of operations to add and subtract.
2.NBT.B.8. Major Standard: Use place value understanding and properties of operations to add and subtract – Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.
2.NBT.B.8.2. Ability to model using base ten manipulatives.