BKSB Number and Calculation 1 — Questions and Answers
Question 1: What is 348 + 276?
- 614
- 624 (Correct answer)
- 634
- 644
Correct answer: 624
348 + 276 = 624; adding units 8+6=14 (carry 1), tens 4+7+1=12 (carry 1), hundreds 3+2+1=6.
Question 2: A worker earns £9.50 per hour and works 8 hours. How much does she earn in total?
- £76.00 (Correct answer)
- £72.00
- £78.50
- £80.00
Correct answer: £76.00
£9.50 × 8 = £76.00.
Question 3: What is 1,000 − 387?
- 513
- 623
- 613 (Correct answer)
- 713
Correct answer: 613
1,000 − 387 = 613; borrowing across zeros gives 613.
Question 4: Which of the following is NOT a factor of 36?
- 4
- 6
- 8 (Correct answer)
- 9
Correct answer: 8
36 ÷ 8 = 4.5, which is not a whole number, so 8 is not a factor of 36.
Question 5: A bag holds 2.5 kg of flour. A baker uses 0.75 kg. How much flour remains?
- 1.75 kg (Correct answer)
- 1.85 kg
- 1.65 kg
- 2.00 kg
Correct answer: 1.75 kg
2.5 − 0.75 = 1.75 kg.
Question 6: What is 15% of 200?
- 25
- 30 (Correct answer)
- 35
- 40
Correct answer: 30
15% of 200 = (15 ÷ 100) × 200 = 30.
Question 7: Which number is a multiple of both 4 and 6?
- 14
- 18
- 24 (Correct answer)
- 26
Correct answer: 24
24 ÷ 4 = 6 and 24 ÷ 6 = 4, so 24 is a multiple of both.
