The goal is to fill up the grid to get it as full as possible while using the space as efficiently as possible. Draw arrays on the grid to see how close you can get to 100. How many squares do you have empty?
Players use a pack of cards to practice addition. In pairs learners deal out six cards each. Uses four cards to make the highest two digit numbers that have the biggest number possible close to 100 when added together.
This activity provides the learners with lots of practice in adding and subtracting. When a number is placed at the top of the pyramid, they must understand how to use addition to help work out subtraction.