About This Lesson
An addictive challenge requiring mental dexterity - the numbers you can use to hit the target are limited; which means the obvious solution is not always possible. You might have to make 12 with 9 and 3 rather than 10 and 2. Sometimes you need to use more than two numbers, so 12 could be 8+2+2. This game is against the clock, so work quickly. How many aliens can you rescue? Aligned to Common Core State Standard: 1.OA.1
