Number Bonds addition & subtraction to 99 for interactive whiteboardsStudents will beg to play these four enticing games on the interactive whiteboard or computer. They can race the clock or each other, or they can " play" on their own (with an instant check of their answers). Whether they're counting as they move frogs onto lily pads, dragging and dropping birds into birdhouses, or clicking on numbers as they beat the clock, they don't have to know that what they're really doing is:-practicing number bonds (aka fact families)-developing mathematical reasoning-building a strong foundation for future math lessons(K-2 skills)