2. Using a number line to round: You round a decimal by deciding which number it is closer to.The same idea applies to the rounding rules.
3. Rounding Rule:To round a decimal to a given place value, look at the digit in the place to the right.- If the digit is 4 or less, round down.- If the digit is 5 or greater, round up.
4. Use a number line / rounding rule to round the decimal as specified. 1. 1.3 (nearest one)2. 3.86 (nearest tenth)