Primary 4 Mathematics · Chapter 1 · Answers and explanations
Lesson 1.2: Ten Thousands, Thousands, Hundreds, Tens and Ones
Use this page to check the practice sheet together. Talk about why each answer is right. Total: 15 marks.
Section A · Multiple choice 4 marks
1. In 37 482, what is the value of the digit 7?1 mark
(A) 700(B) 7000(C) 70 000(D) 7
Answer: (B) 7000The 7 is in the thousands place, so its value is 7000.
2. In 62 148, which place is the digit 4 in?1 mark
(A) ones(B) hundreds(C) thousands(D) tens
Answer: (D) tens62 148 has 6 ten thousands, 2 thousands, 1 hundred, 4 tens and 8 ones. The 4 is in the tens place.
3. Which number is 40 000 + 3000 + 50 + 6?1 mark
(A) 43 506(B) 40 356(C) 43 056(D) 4356
Answer: (C) 43 056Put each part in its place. There are no hundreds, so the hundreds digit is 0: 43 056.
4. In which number does the digit 5 have the value 5000?1 mark
(A) 54 012(B) 15 608(C) 32 150(D) 20 005
Answer: (B) 15 608In 15 608 the 5 is in the thousands place, so it is worth 5000. In the others it is worth 50 000, 50 and 5.
Section B · Write your answer 11 marks
5. What is the value of the digit 8 in 84 306?1 mark
Answer: 80 000The 8 is in the ten-thousands place: 8 × 10 000 = 80 000.
6. Write 46 215 in expanded form.2 marks
Answer: 40 000 + 6000 + 200 + 10 + 546 215 = 40 000 + 6000 + 200 + 10 + 5.
7. Write the number: 70 000 + 4000 + 30 + 2.1 mark
Answer: 74 032Add the parts: 70 000 + 4000 + 30 + 2 = 74 032. There are no hundreds.
8. What digit is in the thousands place of 91 678?1 mark
Answer: 191 678: 9 ten thousands, 1 thousand, 6 hundreds, 7 tens, 8 ones.
9. Write the number with 6 ten thousands, 0 thousands, 8 hundreds, 0 tens and 5 ones.1 mark
Answer: 60 80560 000 + 800 + 5 = 60 805.
10. Fill in the blank: 52 070 = 50 000 + ______ + 70.1 mark
Answer: 200052 070 has 2 thousands, which is 2000.
11. Zara wrote 38 506 = 30 000 + 800 + 500 + 6. Find her mistake and write the correct expanded form.2 marks
Answer: 30 000 + 8000 + 500 + 6. The 8 is worth 8000, not 800.The 8 is in the thousands place, so it is 8000. Correct form: 30 000 + 8000 + 500 + 6.
12. Name the place and the value of the digit 3 in 13 750.2 marks
Answer: thousands place; value 300013 750: the 3 is in the thousands place, so its value is 3000.
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