Mental Strategies: Challenge & Extension
Mathematics
GCSE Foundation
11 questions
~22 mins
1 views0 downloads
About This Worksheet
A worksheet designed to develop mental addition strategies for GCSE Foundation students, including practice, problem solving, real-world contexts, and extension questions.
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Mental Strategies: Challenge & Extension
Subject: MathematicsGrade: GCSE Foundation
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Untitled Worksheet
Grade GCSE Foundation
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Calculate mentally: 47 + 29.
[2 marks]2.
Add 58 and 36 using a mental strategy of your choice.
[2 marks]3.
Estimate the sum of 68 and 27 by rounding to the nearest ten before calculating.
[2 marks]4.
Identify the common mistake: Adding 45 + 48 gives 83. What is the correct sum?
[2 marks]5.
Add 23 and 49 in your head. Break the numbers into tens and units and combine.
[3 marks]6.
Solve: If you add 65 to a number, and the result is 89, what was the original number?
[3 marks]7.
In a shopping scenario, you buy items costing 37 and 46. Use mental strategies to find the total cost.
[3 marks]8.
Add 59 and 38 using a compatible number approach. Explain your method.
[3 marks]9.
Challenge: Find two different ways to add 68 and 27 mentally and verify both give the same answer.
[4 marks]10.
Estimate and then calculate: 76 + 29. How close is your estimate to the actual sum?
[4 marks]11.
A mistake is made when adding 54 + 38 as 82. Identify and correct the mistake.
[4 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet