23 activities to support the 2nd Grade Common Core Math Standards below:CCSS.MATH.CONTENT.2.NBT.A.1Understand 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:CCSS.MATH.CONTENT.2.NBT.A.1.A100 can be thought of as a bundle of ten tens — called a "hundred."CCSS.MATH.CONTENT.2.NBT.A.1.BThe numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three,