An ORCS Blog

Nov

21

Estimating Inverse operations Level 1 I think of a number. I multiply it by 2 and my answer is 24. What was my number? I think of a number. I add 16 and my answer is 36. What was my number? I think of a number. I subtract 25 and add 2. My answer is […]

Nov

14

We use estimation all the time. How would we think about estimating the following? What strategies would you use? How about these Sweets ESTIMATION 180