Shukr Learns
Primary 4 Mathematics · Chapter 9 · Answers and explanations

Lesson 9.1: Tenths (answers)

Section A · Multiple choice 4 marks

1. What is the value of the digit 6 in 4.6?1 mark

(A) 6(B) 0.6(C) 60(D) 0.06
Answer: (B) 0.6The 6 is in the tenths place, so it stands for 6 tenths = 0.6.

2. Which decimal is the same as 7 ones and 3 tenths?1 mark

(A) 7.03(B) 73(C) 7.3(D) 0.73
Answer: (C) 7.37 + 0.3 = 7.3.

3. The shaded part of the strip is written as a decimal. Which is it?

1 mark

(A) 0.4(B) 4.0(C) 0.04(D) 1.4
Answer: (A) 0.44 out of 10 equal parts is 4 tenths = 0.4.

4. Which decimal is 0.1 more than 5.9?1 mark

(A) 5.10(B) 6.0(C) 6.9(D) 5.91
Answer: (B) 6.05.9 + 0.1: 9 tenths + 1 tenth = 10 tenths = 1 one, so the answer is 6.0.

Section B · Write your answer 10 marks

5. Write 9 tenths as a decimal.1 mark

Answer: 0.99 tenths = 0.9.

6. Write 3 ones and 8 tenths as a decimal.1 mark

Answer: 3.83 + 0.8 = 3.8.

7. In 48.3, which digit is in the tenths place?1 mark

Answer: 3The digit after the decimal point is in the tenths place.

8. Write 710 as a decimal.1 mark

Answer: 0.77 tenths = 0.7.

9. Count on in tenths: 2.7, 2.8, ____, 3.0, ____.2 marks

Answer: 2.9 and 3.1Each step is +0.1: 2.8 + 0.1 = 2.9, and 3.0 + 0.1 = 3.1.

10. Mark the decimal 2.4 on the number line by drawing a dot.
2.02.12.22.32.42.52.62.72.82.93.01 mark

Answer: The dot is at 2.4, 4 small steps after 2.2.4 is 4 tenths after 2.

11. What is the value of the digit 5 in 25.9? Write it as a decimal or a whole number.1 mark

Answer: 5The 5 is in the ones place, so its value is 5.

12. Ben says 3.10 is more than 3.1 because it has more digits. Is he right? Explain.2 marks

Answer: No. 3.10 = 3.1A zero at the end of a decimal does not change its value, so 3.10 = 3.1.
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