Subtracting 10 Across Hundreds with Base Ten Blocks

The video teaches how to subtract 10 from three-digit numbers that have no tens in the tens place by using base ten blocks. The instructor explains how to decompose a hundred flat into 10 tens and then take away one to get the new number. The video also provides examples of how to subtract 10 by breaking apart one of the hundreds into tens. The use of base ten blocks helps to demonstrate the concept visually.