# Math Quiz for 5 Minutes: Can You Count In Your Head without a Calculator?

Free online printable quiz with multiple-choice questions (MCQ) without registration.

Counting in your head is good for your brain. This simple exercise, if done regularly, will help you stay in shape. To give it 10-15 minutes a day, or even just 5 minutes is not difficult. And you'll get results in no time at all.

**The Math Quiz for 5 Minutes: Can You Count In Your Head without a Calculator?** consists of 15 problems that, with some skill, can be solved in just 5 minutes. Can you do it, or do you still need to practice?

## Right answers

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### 1. 3 + 3 + 3 + 3 + 3 + 3 = ...

18

### 2. 5 x 5 + 100 = ...

125

### 3. 6 + (10 x 10) = ...

106

### 4. 125 ÷ 5 + 6 = ...

31

### 5. (3 + 5) x (8 - 4) = ...

32

### 6. (100 - 75) x 5 = ...

125

### 7. 850 - (300 + 50) = ...

500

### 8. 257 - 37 x 6 + 4 = ...

39

### 9. 35 x 5 ÷ 25 = ...

7

### 10. (10 + 2) x (3 + 5) = ...

96

### 11. 135 ÷ 5 + 33 = ...

60

### 12. 1000 ÷ 100 ÷ 5 = ...

2

### 13. 50 - 37 + 41 = ...

54

### 14. 6 x 6 x 6 = ...

216

### 15. 35 + 35 + 35 = ...

105