P4 Mathematics CA2 2023 — Catholic High

Q: What is the value of the digit 1 in 4.123?

(1) 0.1. In the number 4.123, the digit 1 is in the first decimal place, which is the tenths place. Therefore, its value is 0.1.

Q: 3__ = 6 What is the missing number in the box?

(2) 18. The expression `3_6 = 6` is interpreted as the mixed number `3 and (missing number)/6 = 6`. To find the missing number, we set up the equation: `3 + (missing number)/6 = 6`. Subtracting 3 from both sides gives `(missing number)/6 = 3`. Multiplying by 6 gives `missing number = 3 * 6 = 18`.

Q: Arrange the following in increasing order.

(2) 4/7, 4/5, 9/4. To arrange the fractions in increasing order, convert them to decimals: 4/5 = 0.8, 4/7 ≈ 0.5714, 9/4 = 2.25. Comparing the decimal values: 0.5714 < 0.8 < 2.25. Therefore, the increasing order is 4/7, 4/5, 9/4.

Q: Express 10 1/4 as a decimal.

(3) 10.25. The mixed number 10 1/4 can be written as 10 + 1/4. Converting the fraction to a decimal: 1/4 = 0.25. So, 10 + 0.25 = 10.25.

P4 Mathematics 2023 CA2 11 questions 25 marks

Source: Catholic High, 2023

This P4 Mathematics CA2 paper from Catholic High (2023) contains 11 questions worth 25 marks. Use it as a study reference for Mathematics topics typically tested at P4 level in Singapore schools.

Q1 MCQ 2 marks

What is the value of the digit 1 in 4.123?

Q2 MCQ 2 marks 🖼 Visual

3__ = 6 What is the missing number in the box?

Q3 MCQ 2 marks

Arrange the following in increasing order.

Q4 MCQ 2 marks

Express 10 1/4 as a decimal.

Q5 Open-ended 2 marks 🖼 Visual

What mixed number does the letter A represent on the number line? Give your answer in the simplest form.

Q6 Open-ended 2 marks

Divide 5 by 8. Correct your answer to 2 decimal places.

Q7 Open-ended 2 marks

The mass of a bag of potatoes is 3 kg when rounded to the nearest kilogram. What is the greatest possible value of the bag of potatoes in 1 decimal place?

Q8 Open-ended 2 marks

Find the product of 15.24 and 3.

Q9 Open-ended 2 marks

Andy and Ben drank a total of 4/5 of juice. Andy drank 1/2 of the juice. How much more juice did Andy drink than Ben?

Q10 Structured 3 marks

Ray and Sherman shared a box of cards. Ray received 5/12 of the cards and Sherman received the remaining 105 cards. How many cards were there in the box?

Q11 Structured 4 marks

The cost of a packet of sweets is twice the cost of a packet of peanuts. The cost of 2 such packets of sweets and a packet of peanuts is $18.50. (a) What is the cost of a packet of peanuts? (b) John bought 2 such packets of peanuts and a packet of sweets. How much did he pay?

P4 Mathematics CA2 2023 — Catholic High

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