iGCSE Higher Edexcel

Geometry and Measures – Angles – Paper 2 and 3

4 Topics | 3 Quizzes

Circle theorems 1

Circle theorems 2

Circle theorems 3

Circle theorems 4

Circle Theorems Bronze

Circle Theorems Silver

Circle Theorems Gold

Number – Approximation and Estimation – Paper 2 and 3

3 Topics | 3 Quizzes

Upper and Lower bounds with decimal places and significant figures

How to find bounds for addition, subtraction, multiplication and division

Paper 1

Number – Conversion

2 Topics

Unit Conversions

Conversions – Area

Number – Fractions

4 Topics | 1 Quiz

Fraction of an amount

Fraction arithmetic

Recurring decimal to fractions

Recurring decimal to fraction Extension

Decimals & Fractions Gold

Number – Properties

5 Topics | 2 Quizzes

Prime Numbers, products and sums

Product of prime factors1

Highest Common Factors and lowest Common Multiple

Finding the HCF and LCM using Venn diagrams

HCF and LCM – Exam Question

Number – Powers and Roots

5 Topics | 7 Quizzes

Simplifying Surds

Surds – Addition and Subtraction

Surds – Multiplication

Surds – Division

GCSE Surds Bronze

GCSE Surds Silver

GCSE Surds Gold

Quadratic Surds Bronze

Quadratic Surds Silver

Quadratic Surds Gold

Surds – Rationalising

GCSE Rationalise Surds Silver

Number – Standard Form

3 Topics | 6 Quizzes

Standard Form – Conversion

Standard Form – More examples

Convert to Standard Form Bronze

Convert to Standard Form Silver

Convert to Standard Form Gold

Standard Form – Conversion (Exam Question)

Convert from Standard Form Bronze

Convert from Standard Form Silver

Convert from Standard Form Gold

Algebra – Equations and inequalities

5 Topics | 7 Quizzes

Linear inequality

Solving Linear Inequalities

Inequalities Bronze

Inequalities – Reversing the inequality sign

Inequalities | Shading regions for a linear inequality in two variables

Inequalities Silver

Solve Inequalities Graphically Bronze

Solve Inequalities Graphically Silver

Inequalities | Solving a simultaneous double linear inequality

Solving Inequalities Bronze

Solving Inequalities Silver

Solving Inequalities Gold

1 of 8

Bounds Gold

iGCSE Higher Edexcel Number – Approximation and Estimation – Paper 2 and 3 How to find bounds for addition, subtraction, multiplication and division Bounds Gold

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Question 1 of 25

1. Question
Find the lower bound of 47 × 96
- 4440.75
- 4488.75
- 4454.75
- 4541.25
Correct

Incorrect
Question 2 of 25

2. Question
Find the lower bound of 9.1 × 6.1
- 56.2725
- 55.3575
- 55.6575
- 54.7525
Correct

Incorrect
Question 3 of 25

3. Question
Find the upper bound of 11 × 23
- 236.25
- 270.25
- 258.75
- 246.75
Correct

Incorrect
Question 4 of 25

4. Question
Find the lower bound of 5.8 × 2.1
- 12.5775
- 11.9925
- 11.7875
- 12.18
Correct

Incorrect
Question 5 of 25

5. Question
Find the upper bound of 7.6 + 6.8
- 14.3
- 14.5
- 14.4
- 14.3999…
Correct

Incorrect
Question 6 of 25

6. Question
Find the upper bound of 3.1 × 3.4
- 10.2175
- 10.8675
- 10.54
- 10.5225
Correct

Incorrect
Question 7 of 25

7. Question
Find the upper bound of 6.8 × 4.9
- 32.7375
- 33.2225
- 33.4125
- 33.9075
Correct

Incorrect
Question 8 of 25

8. Question
Find the lower bound of 3.1 × 8.8
- 27.8775
- 27.5625
- 27.28
- 26.6875
Correct

Incorrect
Question 9 of 25

9. Question
Find the lower bound of 41 × 34
- 1431.75
- 1397.25
- 1356.75
- 1394.0
Correct

Incorrect
Question 10 of 25

10. Question
Find the lower bound of 83 × 84
- 7055.75
- 6971.25
- 6972.25
- 6888.75
Correct

Incorrect
Question 11 of 25

11. Question
Find the lower bound of 5.4 × 7.3
- 40.0575
- 38.7875
- 39.3225
- 39.5125
Correct

Incorrect
Question 12 of 25

12. Question
Find the lower bound of 9.7 × 9.9
- 97.0125
- 95.0525
- 96.0175
- 96.0375
Correct

Incorrect
Question 13 of 25

13. Question
Find the lower bound of 9.3 × 1.6
- 15.4275
- 14.88
- 14.4925
- 14.3375
Correct

Incorrect
Question 14 of 25

14. Question
Find the upper bound of 3.6 × 6.7
- 23.6075
- 24.6375
- 23.9625
- 24.2725
Correct

Incorrect
Question 15 of 25

15. Question
Find the upper bound of 1.8 × 3.5
- 6.0375
- 6.3
- 6.3825
- 6.5675
Correct

Incorrect
Question 16 of 25

16. Question
Find the upper bound of 36 × 98
- 3461.25
- 3558.75
- 3595.25
- 3528.0
Correct

Incorrect
Question 17 of 25

17. Question
Find the lower bound of 49 × 62
- 2982.75
- 3031.25
- 3038.0
- 3093.75
Correct

Incorrect
Question 18 of 25

18. Question
Find the lower bound of 2.4 × 3.3
- 7.6375
- 7.9625
- 7.8725
- 8.2075
Correct

Incorrect
Question 19 of 25

19. Question
Find the lower bound of 4.9 × 6.1
- 29.3425
- 30.4425
- 29.9475
- 29.89
Correct

Incorrect
Question 20 of 25

20. Question
Find the upper bound of 12 × 67
- 843.75
- 831.25
- 804.0
- 776.25
Correct

Incorrect
Question 21 of 25

21. Question
Find the lower bound of 6.3 × 1.4
- 8.4375
- 9.2075
- 9.0625
- 8.5725
Correct

Incorrect
Question 22 of 25

22. Question
Find the lower bound of 1.2 + 5.9
- 7.0
- 7.2
- 7.1
- 6.9
Correct

Incorrect
Question 23 of 25

23. Question
Find the upper bound of 1.4 × 4.7
- 6.8875
- 6.7425
- 6.4125
- 6.58
Correct

Incorrect
Question 24 of 25

24. Question
Find the lower bound of 4.6 × 2.7
- 12.0575
- 12.42
- 12.3225
- 12.7875
Correct

Incorrect
Question 25 of 25

25. Question
Find the lower bound of 6.9 × 7.9
- 53.7725
- 54.4575
- 55.2525
- 54.5575
Correct

Incorrect

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