Rounding to the Nearest 10 and 100

3rd Grade MathPlace Value3 pages

About this worksheet

A rounding worksheet for 3rd grade with fifteen numbered questions and a sorting challenge. Six numbers from 43 to 896 get rounded to the nearest ten, six more from 231 to 849 go to the nearest hundred, and a number bank of 284, 352, 318, 249, 250, and 371 must be sorted into a rounds-to-300 table. Two ticket problems from a school fair finish the page. Callout boxes restate the ones-digit and tens-digit rules before each part, and the key gives the deciding digit for all fifteen answers.

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$Rounding to the Nearest 10 and 100: Place Value - page 1$

$Rounding to the Nearest 10 and 100: Place Value - page 2$

$Rounding to the Nearest 10 and 100: Place Value - page 3$

Curriculum objectives covered

3.NBT.1

“Use place value understanding to round whole numbers to the nearest 10 or 100.”

All fifteen questions plus the sort. The bank in question 13 plants the 249/250 boundary pair, and question 6 (896 to 900) crosses into a new hundred.

What's inside this worksheet

Part 1: Round to the Nearest 10

Six arrow prompts: 43, 87, 154, 265, 618, and 896, the last of which forces a round up across a hundred boundary to 900.

Part 2: Round to the Nearest 100

Another six: 231, 584, 450, 719, 362, and 849. The number 450 sits exactly on a five, testing the round-up rule directly.

Part 3: Number Sort Challenge

Question 13 sorts a bank of six numbers into two columns, Rounds to 300 and Does NOT Round to 300. Both 249 and 250 appear, one falling each side of the line.

Part 4: Real-World Rounding

Maya's 176 ring-toss tickets round to the nearest ten and the school's 648 raffle tickets round to the nearest hundred, each with a workspace box.

How teachers use it

Skills session

Set Parts 1 and 2 as a silent starter with the callouts covered. Uncover them only for students who need the rule restated, and note who those students are.

Boundary teaching

Build your mini-lesson on the 249 and 250 pair from the sort. One ticket apart, two different hundreds: it is the cleanest boundary example on the page.

Whiteboard game

Call the Part 4 numbers to the whole class on mini whiteboards before they write. 176 to the nearest ten trips students who round the 7 instead of reading the 6.

More 3rd Grade Math worksheets

Multiplication and Division Fractions Measurement and Data Geometry

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