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Maths Quiz - Addition and Subtraction (Medium) (Questions)

Test your addition and subtraction skills with this 11 Plus Maths quiz. Learn to handle bigger numbers and spot clever shortcuts to solve questions faster.

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Fascinating Fact:

If you added Big Ben at 96 metres and the Statue of Liberty at 93 metres, you would get 189 metres, still shorter than the Eiffel Tower by 141 metres.

In 11 Plus Maths, pupils use addition and subtraction to solve more advanced number problems. Practising mental maths helps with time management and accuracy in exam conditions.

Key Terms

  • Regrouping: Rearranging numbers to make adding or subtracting easier, such as carrying or borrowing.
  • Inverse: An operation that undoes another, like subtraction undoing addition.
  • Sum: The result of adding two or more numbers together.

Find out what subjects are tested in the 11 Plus in our Guide to 11 Plus Subjects .

Frequently Asked Questions (Click to see answers)

How can I get better at mental maths?

Practise adding and subtracting in your head every day. Try using number pairs and round numbers to estimate quickly before checking the exact answer.

Why is subtraction called the inverse of addition?

Because subtraction reverses what addition does. If 7 + 3 = 10, then 10 ? 3 = 7 — the operations undo each other.

Are addition and subtraction important for algebra?

Yes, these operations form the basis of algebra. Understanding how numbers relate helps pupils solve equations and rearrange expressions later on.

Try These Related Quizzes

In each of the following questions, what is the answer to the given problem?
1. 123 + 56 + 684 - 3 = ?
[ ] 870
[ ] 880
[ ] 860
[ ] 890
2. 345 + 450 - 200 = ?
[ ] 597
[ ] 598
[ ] 596
[ ] 595
3. 245 + 309 - 68 = ?
[ ] 486
[ ] 485
[ ] 487
[ ] 488
4. 234 - 450 + 389 = ?
[ ] 170
[ ] 174
[ ] 175
[ ] 173
5. 500 + 200 + 400 - 678 = ?
[ ] 420
[ ] 421
[ ] 422
[ ] 423
6. 238 - 78 - 45 + 167 = ?
[ ] 228
[ ] 282
[ ] 283
[ ] 284
7. 400 - 389 - 400 + 567 = ?
[ ] 177
[ ] 178
[ ] 180
[ ] 176
8. 789 + 567 - 968 = ?
[ ] 388
[ ] 389
[ ] 390
[ ] 387
9. 234 - 68 + 2 + 13 = ?
[ ] 180
[ ] 182
[ ] 181
[ ] 183
10. 400 + 323 - 23 = ?
[ ] 703
[ ] 697
[ ] 700
[ ] 723
© Education Quizzes. Please visit www.educationquizzes.com to subscribe
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Maths Quiz - Addition and Subtraction (Medium) (Answers)
1. 123 + 56 + 684 - 3 = ?
[ ] 870
[ ] 880
[x] 860
[ ] 890
TIP: With numbers less than 1,000, add the hundreds first, then the tens and then the ones. 123 + 56 + 684 - 3 = (100 + 600) + (20 + 50 + 80) + (3 + 6 + 4 - 3) = 700 + 150 + 10 = 860. You can repeat the procedure if you are having difficulty in doing it in your head
2. 345 + 450 - 200 = ?
[ ] 597
[ ] 598
[ ] 596
[x] 595
345 + 450 - 200 = (300 + 400 - 200) + (40 + 50) + (5) = 500 + 90 + 5 = 595
3. 245 + 309 - 68 = ?
[x] 486
[ ] 485
[ ] 487
[ ] 488
245 + 309 - 68 = (200 + 300) + (40 - 60) + (5 + 9 - 8) = 500 - 20 + 6 = 486
4. 234 - 450 + 389 = ?
[ ] 170
[ ] 174
[ ] 175
[x] 173
234 - 450 + 389 = (200 - 400 + 300) + (30 - 50 + 80) + (4 + 9) = 100 + 60 + 13 = 173
5. 500 + 200 + 400 - 678 = ?
[ ] 420
[ ] 421
[x] 422
[ ] 423
500 + 200 + 400 - 678 = (500 + 200 + 400 - 600) - (70) - (8) = 500 - 78 = 422. You can repeat the procedure if you are having difficulty in doing it in your head. Note: with negative numbers, the negative sign is kept with each part of the number, e.g. - 678 is written as -600, -70, -8
6. 238 - 78 - 45 + 167 = ?
[ ] 228
[x] 282
[ ] 283
[ ] 284
238 - 78 - 45 + 167 = (200 + 100) + (30 - 70 - 40 + 60) + (8 - 8 - 5 + 7) = 300 - 20 + 2 = 282
7. 400 - 389 - 400 + 567 = ?
[ ] 177
[x] 178
[ ] 180
[ ] 176
400 - 389 - 400 + 567 = (500 - 300) + (60 - 80) + (7 - 9) = 200 - 20 - 2 = 178
8. 789 + 567 - 968 = ?
[x] 388
[ ] 389
[ ] 390
[ ] 387
789 + 567 - 968 = (700 + 500 - 900) + (80 + 60 - 60) + (9 + 7 - 8) = 300 + 80 + 8 = 388
9. 234 - 68 + 2 + 13 = ?
[ ] 180
[ ] 182
[x] 181
[ ] 183
234 - 68 + 2 + 13 = (200) + (30 - 60 + 10) + (4 + 2 + 3 - 8) = 200 - 20 + 1 = 181
10. 400 + 323 - 23 = ?
[ ] 703
[ ] 697
[x] 700
[ ] 723
400 + 323 - 23 = (400 + 300) + (20 - 20) + (3 - 3) = 700. Be on the LOOKOUT FOR SHORT CUTS: 323 - 23 = 300
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