An estimate of a quantity up to 1,000 is a nearby, useful amount rather than an exact count, determined by place value and familiar benchmarks. Numbers and collections can be compared with tens and hundreds on a number line or in grouped representations to decide whether they are closer to one benchmark than another; estimates need not be exact, while larger numbers, finer precision, and formal error bounds are outside this scope.
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Detailed Explanation: Estimate quantities to 1,000
An estimate is a close, useful number—not the exact amount. To estimate to the nearest hundred, compare the number with nearby hundreds.
Example: A library has books. About how many books is that?
- Find the hundreds on either side of :
- Find the halfway point between them:
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Since is less than , it is closer to than to .
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So, books is about
The estimate is , but the exact number is .
Learn by doing: Estimate quantities to 1,000
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Practice:
Rounding Whole Numbers - Hundreds to Nearest Hundred
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Download/Modify Free Grade 2 'Estimate quantities to 1,000' Worksheet
Print this free 'Estimate quantities to 1,000' worksheet to practice this skill away from the computer. Click 'Modify' to easily customize this worksheet to your exact needs.
This Worksheet Includes:
- Rounding Whole Numbers - Hundreds to Nearest Hundred
- Rounding Whole Numbers - Thousands to Nearest Thousand
- Base 10 Blocks - Less or Greater Than - Pictures to Alligator - Hundreds and Tens
- Base 10 Blocks - Decompose and Compare - Thousands to Hundreds
- Base 10 Blocks - Counting - Picture to Places - Thousands and Hundreds
- Base 10 Blocks - Counting - Picture to Number - Thousands and Hundreds
- Base 10 Blocks - Counting - Picture to Number - Thousands, Hundreds and Tens
- Base 10 Blocks - Counting - Picture to Places - Thousands, Hundreds and Tens
Units Teaching This Skill
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