Whole Numbers 1
Whole numbers are the basic counting numbers 0, 1, 2, 3, 4, 5, 6 and so on. In P3, we learn numbers up to 10 000.
In this article, the learning objectives are:
- Reading and writing numbers up to 10 000
- Comparing and ordering numbers
1. Reading and writing numbers up to 10 000
When writing numbers more than 1000 in words, we need to add a comma to separate the hundreds from the thousands.
Question 1:
Write the following in words.
1508
Answer:
One thousand, five hundred and eight
Question 2:
Write the following in words.
3520
Answer:
Three thousand, five hundred and twenty
Question 3:
Write the following in words.
7845
Answer:
Seven thousand, eight hundred and forty-five
Question 4:
Write the following in words.
10 000
Answer:
Ten thousand
Question 5:
Write the following in numerals.
Six thousand, five hundred and nineteen
- 6519
- 6590
- 6591
- 5619
Answer:
(1) 6519
Question 6:
Write the following in numerals.
Two thousand and seventy-five
- 2750
- 2705
- 2275
- 2075
Answer:
(4) 2075
Question 7:
Write the following in numerals.
Four thousand and nine
- 409
- 4009
- 4090
- 4900
Answer:
(2) 4009
Question 8:
Write the following in numerals.
Five thousand, four hundred and eleven
Answer:
5411
Question 9:
Write the following in numerals.
Nine thousand, two hundred and five
Answer:
9205
Question 10:
Which of the following has the same value as the words written below?
Nine thousand, one hundred and thirteen
- 9000 \(+\) 10 \(+\) 13
- 9000 \(+\) 100 \(+\) 13
- 9000 \(+\) 10 \(+\) 30
- 9000 \(+\) 100 \(+\) 130
Solution:
9000 \(+\) 100 \(+\) 13 \(=\) 9113
Answer:
(2) 9000 \(+\) 100 \(+\) 13
2. Comparing And Ordering Numbers
When we compare numbers, we will compare the digits from the left to the right.
The greater the digit on the “left”, the greater the number.
Question 1:
Let’s take a look at the following numbers:
Which number is greater?
Solution:
The digit in the thousands place of both numbers is 2.
Since they are the same, we look at the digit in the hundreds place.
The digit in the hundreds place of both numbers is different. We compare them.
Since 9 is greater than 5, 2950 is greater than 2590.
Answer:
2950
Question 2:
Which of the following is the greatest?
- 6710
- 2375
- 4097
- 1684
Solution:
By comparing the digits in the thousands place for all the numbers, 6 is the greatest.
Hence, 6710 is the greatest number.
Answer:
(1) 6710
Question 3:
Which of the following is the smallest?
- 7835
- 1089
- 2550
- 4872
Solution:
By comparing the digits in the thousands place for all the numbers, 1 is the smallest.
Hence, 1089 is the smallest number.
Answer:
(2) 1089
Question 4:
Which of the following is the greatest?
- 5760
- 5670
- 6750
- 6570
Solution:
By comparing the digits in the thousands place for all the numbers, 6 is greater than 5.
Hence, we compare 6750 and 6570.
By comparing the digits in the hundreds place for 6750 and 6570, 7 is greater than 5.
Hence, 6750 is the greatest number.
Answer:
(3) 6750
Question 5:
Which of the following is the smallest?
- 2323
- 2332
- 3232
- 3223
Solution:
By comparing the digits in the thousands place for all the numbers, 2 is smaller than 3.
Hence, we compare 2323 and 2332.
The digit in the hundreds place for 2323 and 2332 is the same.
By comparing the digits in the tens place for 2323 and 2332, 2 is smaller than 3.
Hence, 2323 is the smallest number.
Answer:
(1) 2323
Question 6:
Arrange the following numbers in order, starting with the smallest.
3750 | 573 | 3705 | 5370 |
Solution:
573 | 3705 | 3750 | 5370 | |||
smallest |
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Question 7:
Arrange the following numbers in order, starting with the greatest.
4554 | 454 | 4455 | 5445 |
Solution:
5445 | 4554 | 4455 | 454 | |||
greatest |
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Question 8:
Arrange the following numbers in order, starting with the smallest.
1095 | 5091 | 9051 | 1509 |
Solution:
1095 | 1509 | 5091 | 9051 | |||
smallest |
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Question 9:
Arrange the following numbers in order, starting with the greatest.
3500 | 5030 | 3050 | 5300 |
Solution:
5300 | 5030 | 3500 | 3050 | |||
greatest |
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Question 10:
Arrange the following numbers in order, starting with the smallest.
2960 | 2680 | 2806 | 2608 |
Solution:
2608 | 2680 | 2806 | 2960 | |||
smallest |
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Question 11:
Arrange the following numbers in order, starting with the greatest.
1001 | 1100 | 1011 | 1010 |
Solution:
1100 | 1011 | 1010 | 1001 | |||
greatest |
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