1.6 Number Sense and Approximation: Putting Numbers to Work
Point 6 of 6
1.6.6 Getting ready to estimate
Core idea
Round numbers to clean tens and hundreds first, so the next step of adding, subtracting, multiplying, or dividing lets you ballpark the answer in your head
Module goal. Build an intuition for how big numbers are, learn to round to an approximate value, and pave the way for estimating in operations
eastmath.com · 1.6 Number Sense and Approximation: Putting Numbers to Work · 1.6.6 Getting ready to estimate