About This Lesson
A TESiboard activity to find the difference between positive and negative numbers. Mentally calculate the height difference between the rescue craft and the line of creatures. Click the number card that shows the answer to move the craft. Collect all 10 animals to complete the task. This game requires calculations with a single digit and two digits difference. The complete iboard Animal Rescue collection includes differences of multiples of ten, units and tenths. All can be differentiated to play with smaller or larger number ranges, making them suitable for all abilities.
