But, how your child learns to understand addition and subtraction is very important. The place value chart teaches your child why the standard algorithm works. How powerful!

As 5 is greater than 4, you can say 0.157 is greater than 0.146. Take the numbers 2.43 and 2.34. Let's use a place value chart to find which is greater. The chart on the left represents 2.43 and ...