VC2M3N06
estimate the quantity of objects in collections and make estimates when solving problems to determine the reasonableness of calculations
- estimating how much space a grid paper representation of a large number such as 20 200 will take up on the wall and how much paper will be required
- estimating the number of people in a large gathering (for example, a school assembly) using known numbers (such as how many students per class)
- choosing which place value they would estimate to for different situations; for example, choosing to estimate to the nearest ten when estimating how many dots on a ladybird or choosing to estimate to the nearest thousand when estimating crowd sizes at a venue
- checking the reasonableness of an addition calculation by using two- and three-digit numbers to the nearest ten or hundred to estimate; for example, using 200 + 400 = 600 to estimate and check the solution to the calculation 219 + 385
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Rounding PPT — "Rounding With Reasoning"
Use this engaging rounding PPT to teach your students to round with reasoning — not rules!
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Rounding Numbers PPT — Rounding Roller Coaster Method
Present this roller coaster-themed rounding numbers PPT to your students to teach or review how to round large numbers.
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Rounding Anchor Chart — Rounding Roller Coaster!
Hang our rounding anchor chart in your classroom for a fun reminder of how to round numbers — roller coaster style!
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Estimating Sums and Differences by Rounding and Compatible Numbers — Worksheet Set
Supercharge your students’ maths skills with our estimation worksheets! Download now to master the art of rounding and using compatible numbers for lightning-fast calculations.
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Rounding to Estimate Worksheet Set
Use our rounding to estimate worksheet set to sharpen number sense and mental maths skills.
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Estimating Sums and Differences Interactive Activity
Download our interactive activity designed to sharpen your students’ understanding of estimating sums and differences with rounding and compatible numbers.
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Rounding Activity (Warm-Up Teaching Slides)
Use this digital rounding activity to review rounding numbers to the tens, hundreds and thousands place.
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Estimation With Addition and Subtraction Task Cards
Supercharge your students’ maths skills with this set of task cards designed to help them master estimating sums and differences of whole numbers using rounding and compatible numbers.
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Estimation Worksheets (Addition and Subtraction)
Teach your students how to use their rounding skills to estimate sums and differences with these maths worksheets.
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Games for Rounding — 'Rounding Match-Up'
Explore games for rounding your students will love, like this 'Rounding Match-Up' activity!
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Estimating Year 3 Activity - How Many?
Use this estimating year 3 activity to sharpen your students’ spatial awareness, number sense and mental maths skills.
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Interactive Rounding Game — "Four Corners"
Play this interactive rounding game with your class or assign it to individual students for a fun way to practise rounding whole numbers.
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Estimation Activity - Estimating Space Worksheet Set
Use estimation activities like this estimating space worksheet set to give your students practice estimating, converting measurements and problem solving.
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Rounding Poster and Worksheet Set (Rounding Rock)
Display this rounding poster of the “Rounding Rock” in your classroom to encourage your students to rock out rounding!
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Rounding With a Number Line Teaching Slides (Large Numbers)
Teach rounding with a number line using this set of teaching slides featuring numbers up the hundred thousands.
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Visual Estimation Games - Estimating Collections Interactive Task Cards
Play visual estimation games like this estimating collections interactive activity to let your students hone their spatial awareness, estimation and mental maths skills.
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Estimating Sums & Differences Interactive Picture Reveal
Send your students on an intergalactic maths adventure while practising how to estimate sums and differences of whole numbers.
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Estimating Sums & Differences Maths Mazes
Sharpen your students’ rounding and estimation skills with a set of maths mazes.
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Estimating Sums and Differences Matching Activity and Extension Task
Guide your students to estimate addition and subtraction sentences by rounding and compatible numbers with this matching activity.
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Estimating Sums and Differences Differentiated Worksheets
Teach your students how to round and use compatible numbers to estimate sums and differences with this set of differentiated worksheets.