MA 02.NBT.A.1 Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones;
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.
Good Projects here: Illustrative Mathematics https://www.illustrativemathematics.org/content-standards/2