Gerald Beimler

This 100s chart is in a BMP format that allows you to print it on any size paper (I recommend 8.5 x 11 for kids and 24 x 36 for teachers). This 100s chart serves primary students as they form their concept of number while retaining its full usefulness for traditional activities ranging from learning your "ninesies," to finding primes less than 100 with the Sieve of Eratosthenes, to calculating the slope of the lines through multiples of whole numbers, and beyond (generating functions across a