In the Common Core, students are expected to be able to recognize and display numbers in different ways using place value. This activity allows them to practice using base ten blocks to build numbers in different ways, so that they will recognize that no matter how it is displayed, it is still the same number. For example, 246 can be displayed as 2 hundreds, 4 tens, and 6 ones which is the traditional way. But students should also recognize that 24 tens and 6 ones is the same number.
Common Core Standards: 2.NBT.1 Understands that the three digits ofa three digit number represent amounts of hundreds, tens, and ones.