Grade 2 - Number and Operations in Base Ten
Standard 2.NBT.1a - Count the number of blocks shown up to 1000.
Included Skills: Counting
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 special cases: 100 can be thought of as a bundle of ten tens - called a "hundred."