Are your pupils learning about the number 100? This activity puts their skills to the test as they fill in number sequences by 1s and 10s. First, they complete half a hundreds chart, writing numbers into blank squares. Some are filled in. Next, learners complete a number sequence beginning at 10 and ending at 100, counting by 10s to complete the blanks. Finally, they finish the hundreds chart from 50 to 100, filling in missing numbers. Good number printing practice.