IB Math AI HL · 2021 to 2025

1.6 Approximating and estimating

14 past paper questions from 11 papers across 8 exam sessions. See what repeats, then practise the same skills with AI marking.

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HL archive · 2021 to 2026

1.6 Approximating and estimating

Latest exam session: May 2026

questions
questions
papers
papers
exam sessions
exam sessions
By year3micro-topics

Micro-topics in 1.6 Approximating and estimating

In syllabus order. The ring is the share of papers each appears in. 1 of them has no matching questions in this archive.

  • 0

    1.6.1

    Rounding and Approximation

    No question tagged to this topic in the 63 Math AI HL papers analysed

    No matches in this archiveRevise it
  • 6

    1.6.2

    Absolute and Relative Error

    4 questions · in 6% of papers

    Occasional

    last May 26 P1 TZ2

  • 6

    1.6.3

    Upper and Lower Bounds

    5 questions · in 6% of papers

    Occasional

    last May 25 P1 TZ2

  • 8

    1.6.4

    Percentage Error in Context

    5 questions · in 8% of papers

    Occasional

    last May 26 P2 TZ1

Exam pattern

How often each micro-topic has been examined, year by year. Each label is explained under the grid.

Does it repeat?

Questions per year for each micro-topic, including those with no matches in this archive.

fewermore

Micro-topic202120222023202420252026
·Percentage Error in Context, 2021: 0 questions1Percentage Error in Context, 2022: 1 question·Percentage Error in Context, 2023: 0 questions1Percentage Error in Context, 2024: 1 question1Percentage Error in Context, 2025: 1 question2Percentage Error in Context, 2026: 2 questions
1.6.3Upper and Lower BoundsOccasional
·Upper and Lower Bounds, 2021: 0 questions1Upper and Lower Bounds, 2022: 1 question3Upper and Lower Bounds, 2023: 3 questions·Upper and Lower Bounds, 2024: 0 questions1Upper and Lower Bounds, 2025: 1 question·Upper and Lower Bounds, 2026: 0 questions
1Absolute and Relative Error, 2021: 1 question1Absolute and Relative Error, 2022: 1 question1Absolute and Relative Error, 2023: 1 question·Absolute and Relative Error, 2024: 0 questions·Absolute and Relative Error, 2025: 0 questions1Absolute and Relative Error, 2026: 1 question
1.6.1Rounding and ApproximationNo matches in this archive
·Rounding and Approximation, 2021: 0 questions·Rounding and Approximation, 2022: 0 questions·Rounding and Approximation, 2023: 0 questions·Rounding and Approximation, 2024: 0 questions·Rounding and Approximation, 2025: 0 questions·Rounding and Approximation, 2026: 0 questions
  • Occasionalin about one paper in ten
  • No matches in this archiveon the syllabus, but has no question tagged to it in this archive. This does not mean it has never been examined

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Questions on 1.6 Approximating and estimating, by exam session

Which papers asked about 1.6 Approximating and estimating, and which question numbers. Open a paper to see them highlighted.

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Frequently asked questions

Short answers about this page.

Which Math AI HL exam sessions are covered for 1.6 Approximating and estimating?

12 exam sessions from 2021 to 2026, the latest May 2026. Every Paper 1 and 2 in every timezone is read and classified in full, which gives 11 papers in this archive.

Which 1.6 Approximating and estimating topic comes up most?

Percentage Error in Context (1.6.4): in 8% of papers, last seen May 26 P2 TZ1. Usually "Find", worth about 3 marks in a paper that includes it.

Can I see the original question and mark scheme?

No. The wording belongs to the IB. You get the citation, the marks, the command term and the skill tested, plus our own matched practice questions with worked answers and AI marking.

What do "banker", "due" and "rising" mean?

Banker: examined in at least one sitting in four and still appearing. Due: regular before, but absent for the last two exam sessions. Rising: clearly more common in the last two years. Our classification of real papers, not an IB statistic.

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Reading this page and the exam pattern is free. A free account generates three sets of ten questions and launches one practice set. Pro opens every question in any scope, sets of twenty or all, and unlimited practice.

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