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Grade 3 (ages 8 to 9) · Math

Rounding and place value

Reading three-digit numbers by place value and rounding to the nearest ten and hundred

About four lessons of 45 to 60 minutes

Chalk illustration of a number-line hill with a midpoint and a marker moving toward the nearer end.
Rounding on a number line: A concrete image for nearest ten or hundred before the digit rule.
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