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Bounds and Error Intervals•
Rounding

Calculating with Bounds WORKSHEET

Suitable for Year groups: Year 10, Year 11
GCSE Tier: Higher
Targeting grades: 6-7
Prerequisite knowledge: Write error intervals. Calculating: area and perimeter and compound measures. Substituting into formulae.
Learning Objective: Apply and interpret limits of accuracy when rounding or truncating, including upper and lower bounds.

Calculating with Bounds WORKSHEET DESCRIPTION

The "Calculating with Bounds" worksheet focuses on rounding and working with bounds. In Section A, students calculate the upper and lower bounds for different values of x and y, therefore applying the four operations whilst building familiarity with bounds through straightforward arithmetic.

Section B then advances into finding the upper and lower bounds of the perimeter and area of various polygons, encouraging students to apply bounds to geometric figures.

Section C brings in real-world scenarios, calculating bounds for compound measures such as speed and density.

Sections D and E challenge students with more advanced problems, involving bounds in algebraic expressions and compound calculations.

All worksheets are created by the team of experienced teachers at Cazoom Maths.

Cazoom Maths Calculating with Bounds Worksheet suitable for Year 10 and Year 11

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Truncating and Error Intervals

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Error Intervals - Rounding

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Upper and Lower Bounds

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Frequently Asked Questions

Students should be comfortable writing error intervals and have solid skills in calculating area and perimeter of shapes. They'll also need experience with compound measures like speed and density, plus confidence substituting values into formulae, as these foundational skills underpin the bounds calculations throughout the worksheet.