Year 7 · Mathematics and statistics · Number
Rounding, estimation and order of operations
Rounding to powers of 10 and decimal places, estimating to check answers, written multiplication and division, and GEMA.
Everything for this topic in one place
- 3D lesson: Rounding, estimation and order of operations — Slide a marker along a 3D number line to round, estimate products, multiply with an area model, share cubes to divide with remainders, and use GEMA.
- Teacher presentation — slides to put on the projector.
- Worksheets at three levels — Tūī (support), Kererū (core) and Kea (extension), each with an answer key on the last page.
- Online practice — assign it to your class in the Crateclass classroom and the results come back by themselves.
Written for Te Mātaiaho, Phase 3 (Years 7–8), with New Zealand places, money and native birds.
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More Year 7 maths topics
Powers of 10 and expanded form · Primes, factors, HCF and LCM · Integers · Fractions, decimals and percentages · Proportional reasoning, percentages and money · Algebraic notation and equations · Linear patterns and the coordinate plane · Perimeter, area and volume formulae · Triangles and angles in polygons · Transformations, nets and compass points · Statistical investigations, averages and graphs · Experimental and theoretical probability