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Estimation•
Rounding

Approximation (A) WORKSHEET

Suitable for Year groups: Year 7, Year 8
GCSE Tier: Foundation
Targeting grades: 1-3
Prerequisite knowledge: Rounding to significant figures, four operations, powers and roots.
Learning Objective: use approximation through rounding to estimate answers

Approximation (A) WORKSHEET DESCRIPTION

This worksheet focuses not only on rounding but also choosing suitable values for estimating answers to calculations.

Section A asks learners to complete a large table where they must choose suitable values to approximate the answer to a calculation and find the answer. Learners must be aware that sometimes rounding to 1 significant figure is not always the best method when estimating some calculations.

Section B then provides six-worded problems involving estimation.

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

Approximation Worksheet fit for students in year 7 and year 8

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Frequently Asked Questions

Students should be confident with rounding to significant figures and the four basic operations before tackling this resource. They'll also need a solid understanding of powers and roots, as these mathematical concepts form the foundation for making sensible approximations in more complex calculations.