Stage 1 · Numbers & Counting

1.6.4 Rounding

1.6 Number Sense and Approximation: Putting Numbers to Work

Point 4 of 6

1.6.4 Rounding

Core idea

Look at the digit you're cutting off: less than 5, drop it; 5 or more, round up — and tidy the number into a clean ten or hundred

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 · 1.6.4 Rounding