Rounding

Rounding to the nearest 0.1, 10, 100, 1000, 10000

1. Dot in place value you are being asked to round to.
2. Look next door. (circle all numbers to the right.)
3. If the first number in the circle is a five or more, round up, otherwise stay the same and everything inside the circle, we replace with zeros.

Estimation

Penguin Estimation Game