Number and Operations in Base Ten

NC.2.NBT.1 – Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones.
• Unitize by making a hundred from a collection of ten tens.
• Demonstrate that the numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds, with 0 tens and 0 ones.