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Worksheet 5 – Knowing our numbers
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Question 1 of 10
1. Question
Estimate 320078 to nearest thousands.
Correct
Explanation:
Given number = 320078
The digit in hundreds place = 0
0<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 320000.Incorrect
Correct Answer: 320000
Explanation:
Given number = 320078
The digit in hundreds place = 0
0<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 320000. 
Question 2 of 10
2. Question
Estimate 10023 to nearest thousands.
Correct
Explanation:
Given number = 10023
The digit in hundreds place = 0
0<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 10000.Incorrect
Correct Answer:10000
Explanation:
Given number = 10023
The digit in hundreds place = 0
0<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 10000. 
Question 3 of 10
3. Question
Estimate 56749 to nearest thousands.
Correct
Explanation:
Given number = 56749
The digit in hundreds place = 7
7 > 5
Replace the digit each in hundreds, tens and ones place by 0 and increase the digit in thousands place by 1.
Therefore, estimated number = 57000.Incorrect
Correct Answer: 57000
Explanation:
Given number = 56749
The digit in hundreds place = 7
7 > 5
Replace the digit each in hundreds, tens and ones place by 0 and increase the digit in thousands place by 1.
Therefore, estimated number = 57000. 
Question 4 of 10
4. Question
Estimate 97855 to nearest thousands.
Correct
Explanation:
Given number = 97855
The digit in hundreds place = 8
8>5
Replace the digit each in hundreds, tens and ones place by 0 and increase the digit in thousands place by 1.
Therefore, estimated number = 98000.Incorrect
Correct Answer: 98000
Explanation:
Given number = 97855
The digit in hundreds place = 8
8>5
Replace the digit each in hundreds, tens and ones place by 0 and increase the digit in thousands place by 1.
Therefore, estimated number = 98000. 
Question 5 of 10
5. Question
Estimate 56473 to nearest thousands.
Correct
Explanation:
Given number = 56473
The digit in hundreds place = 4
4<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 56000.Incorrect
Correct Answer: 56000
Explanation:
Given number = 56473
The digit in hundreds place = 4
4<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 56000. 
Question 6 of 10
6. Question
Estimate 23456 to nearest thousands.
Correct
Explanation:
Given number = 23456
The digit in hundreds place = 4
4<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 23000.Incorrect
Correct Answer:23000
Explanation:
Given number = 23456
The digit in hundreds place = 4
4<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 23000. 
Question 7 of 10
7. Question
Estimate 90123 to nearest thousands.
Correct
Explanation:
Given number = 90123
The digit in hundreds place = 1
1<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 90000.Incorrect
Correct Answer: 90000
Explanation:
Given number = 90123
The digit in hundreds place = 1
1<5
Replace the digit each in hundreds, tens and ones place by 0 and leave the digit in thousands place as it is.
Therefore, estimated number = 90000. 
Question 8 of 10
8. Question
Estimate 50987 to nearest thousands.
Correct
Explanation:
Given number = 50987
The digit in hundreds place = 9
9 > 5
Replace the digit each in hundreds, tens and ones place by 0 and increase the digit in thousands place by 1.
Therefore, estimated number = 51000.Incorrect
Correct Answer: 51000
Explanation:
Given number = 50987
The digit in hundreds place = 9
9 > 5
Replace the digit each in hundreds, tens and ones place by 0 and increase the digit in thousands place by 1.
Therefore, estimated number = 51000. 
Question 9 of 10
9. Question
Estimate 8900 to nearest thousands.
Correct
Explanation:
Given number = 8900
The digit in hundreds place = 9
9 > 5
Replace the digit each in hundreds, tens and ones place by 0 and increase the digit in thousands place by 1.
Therefore, estimated number = 9000.Incorrect
Correct Answer: 9000
Explanation:
Given number = 8900
The digit in hundreds place = 9
9 > 5
Replace the digit each in hundreds, tens and ones place by 0 and increase the digit in thousands place by 1.
Therefore, estimated number = 9000. 
Question 10 of 10
10. Question
Estimate the sum of 48 and 68 to nearest tens.
Correct
Explanation:
Sum of 48 and 68 = 48 + 68
48 rounded off to nearest tens = 50
68 rounded off to nearest tens = 70
50 + 70 = 120Incorrect
Correct Answer: 120
Explanation:
Sum of 48 and 68 = 48 + 68
48 rounded off to nearest tens = 50
68 rounded off to nearest tens = 70
50 + 70 = 120