Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...
A measurement or observed value is discussed as the sum of two components-one the absolute value of the characteristic measured and the other an error of measurement ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback