• 2.NBT.1 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. Understand the following as a special cases:
     
         a. 100 can be though of as a bundle of ten tens - called a "hundred".
         b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones). 
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