Mental Maths Quiz: 15 Problems. Add and Subtract without a Calculator!

Mental Maths Quiz: 15 Problems. Add and Subtract without a Calculator!
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Free online printable quiz with multiple-choice questions (MCQ) without registration.

Let's keep doing mental math. Each task in our quiz is a great exercise for your brain. Take just 10-15 minutes a day and stay in shape for life!

The mental math quiz on this page contains 15 problems. Try not to get it wrong at least once!

Test yourself

Found a mistake? Select it and press Ctrl+Enter

For each question choose one of the multiple answers then click done to check your results.

1. 66 - (25 + 7) = ...

2. (100 + 50) - 25 = ...

3. 321 + 123 = ...

4. 184 - (84 + 21) = ...

5. 23 + 24 + 25 = ...

6. 851 - 581 = ...

7. 131 - 65 + 33 = ....

8. (65 - 15) - (10 - 34) = ...

9. 37 + 81 = ...

10. 68 - 34 = ...

11. 35 + (65 - 45) = ...

12. 250 - 25 - 25 - 25 - 25 - 25 = ...

13. 55 + 55 - 66 = ...

14. 53 + 37 - 80 = ...

15. (5 + 5) + (5 + 5) = ...

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