These board games encourage students to use combinations to ten, twenty and one hundred to solve addition problems. Students make their way around the board and land on a number sentence containing three numbers. For example, 3 + 7 + 4. Students have to find the two numbers that equal 10 (3+7), then count on the remaining number (10+4=14) to find the total. Students can use a mini whiteboard to record their number sentence and answer. This game is differentiated to suit the varying needs within your class. That is, it contains a Friends of Twenty (e.g. 14+5+6) and Friends of 100 (23+54+77) game. This is a great, engaging and fun game that can be played independently, in pairs or in a small group. It encourages students to apply known facts to solve addition problems.