This rectangle covers 15 squares so it has an area of 15 cm 2. To find the exact area of a shape, count the whole squares and half squares. There are eight whole squares = 8 cm 2 and seven half ...

Divide this figure into three parts that can be arranged into a square. The parts must not be folded over to make their current back the front, they must not overlap, and there must not be any ...

At the end of each row is a multiple of ten. You can use the 100 square to count from 1 to 100 and to count from 100 to 1. You can also use it to spot patterns in the numbers up to 100.