At the end of this lesson, students should be able to:
Decimal number lines help to compute the set of decimals that lie within any two or more given numbers. The knowledge used in comparing and ordering decimals may be essential in this lesson.
Let’s take a look at the number line below showing the set of decimals between 0 and 1.
Now let’s take a look at the set of decimals that exist between 5 and 5.1
Below are the set of decimals between 8 and 8.01
On the first number line (A) above, 0.1, 0.2, 0.3 and 0.4 are nearer to 0 while 0.9, 0.8, 0.7 and 0.6 are nearer to 1.
We can therefore say that 0.5 is half way between 0 and 1 and therefore it is the mid-point.
A similar conclusion can be drawn for number lines B and C that 5.05 and 8.005 are their mid-points respectively.
Decimal Number Sequences
Decimal number sequences are a set of decimal numbers that graduate from one number to the next based on a particular pattern or rule. Decimal number sequences can be created or continued by counting in decimal steps. Let’s look at some examples below.
0.3, 0.6, 0.9, 1.2…..
Unit 10 Lesson 7: Exercise 1
What decimal number does each letter represent?
Unit 10 Lesson 7: Exercise 2
Write the next two terms in each sequence.
Fill in the blanks in these sequences.