Use a number line to identify if you need to round up or round down. The whole numbers are equally spaced on this number line. The values increase by each step to the right.

Slide 1 of 9, A number line from zero to ten., Use a number line to identify if you need to round up or round down. The whole numbers are equally spaced on this number line.

Twenty-four first-grade children were asked to write number sentences and select appropriate alternative number sentences for addition and subtraction word problems. Responses were qualitatively ...