Subtraction speed test Year Three

Practise subtraction with the speed test. You get 12 seconds for each answer. The faster you answer, the more points you earn. There are three choices. Up to 20, up to 50, and up to 100. Example sums up to 20: 14 - 6 = 8 19 - 4 = 15 Example sums up to 50: 35 - 20 = 15 50 - 15 = 35 Example sums up to 100: 70 - 30 = 40 40 - 10 = 30