6NPV–3: Reason about the location of any number up to 10 million, including decimal fractions, in the linear number system, and round numbers, as appropriate, including in contexts. Enhances precision and decision-making in mathematical calculations, critical for advanced mathematical problem solving.
Going through the following exercises on this page in the 'Numbers and Place Value' section will fully cover rounding larger numbers and fully understanding where they live on the number line and when they are used in real life: 1) Comparing Numbers 2) Rounding Numbers 1, 2, and 3, 3) Number Lines 4) Large Numbers, and 5) Large Numbers in Context.