【實用教育app】Vampire Math|最夯免費app-綠色工廠好玩App

In vampire math, you have to answer simple math equations using adding and subtraction. Use your answers wisely and time wisely, you have 60 seconds to answer unlimited random questions. Each time you get an answer right, 5 seconds will be added to your time and 5 points will be added to your score. The questions are targeted for grade 2 and up. See if you can answer these questions correctly!!