Ascending Order and Descending Order – Mathematics STD 4
When numbers are arranged from the smallest number to the largest number, it is said to be Ascending order. Example 2, 4, 6, 8, 10, 12.
When numbers are arranged from the largest number to the smallest number, it is said to descending order.
Example: 12, 9, 6, 3, 0
EXERCISE
1. Arrange the following numbers in ascending order
1. 40, 5, 15, 20, 25, 30, 35, 10
2. 13, 5, 9, 11, 15, 29, 19, 1, 17, 3
3. 9,000, 2,000, 3.000, 6,000, 7,000, 4,000, 1, 000, 5,000,
4. 36, 42, 39, 35, 38, 40, 37, 44, 41, 43
5. 14, 18, 20, 2, 8, 12, 6, 4, 10, 16
2. Arrange the following numbers in descending order
1. 2,6, 12, 8, 4, 10, 18, 24, 20, 22.
2. 32, 36, 28, 16, 12, 20.
3. 18, 60, 36, 42, 66, 24, 48, 30, 54, 72
4. 2,000, 9,000, 8,000, 3,000, 6,000, 7,000, 4,000, 5,000
5. 10, 40, 50, 70, 20, 30, 80, 60
Finding the missing numbers
Example
2, 4, 8, 10, 12, 14, 16
2+ 2 =4
4+2 = 6
6+ 2 = 8
8 +2 = 10
The missing number is 6.
24, 22, 20,
24 -2 = 22
22 – 2 = 20
20 – 2 = 18
18 – 2 = 16
The missing numbers are 18 and 16
EXERCISE
1. Find the missing numbers on the following square.
X=
Y=
Z=