The aim is to learn subtraction using a number line. It is one of the easiest and beginner friendly way to learn subtraction by class 1 or grade 1 students.

1. Grade 1
Inquiry Module 2
Subject : Mathematics

2. Simran and her teacher

3. Simran`s naughty brother

4. - =
5 Chocolates
3 Chocolates

5. - =
5 Chocolates 3 Chocolates 2 Chocolates
Naughty brother took away 3 chocolates from 5 chocolates.

6. Symbols
(-) (=)
Subtraction Equal

7. Taking away  Subtraction (-)

8. Now, if I did not had these
chocolates and I had these numbers
. 5 – 3 = ?
So we can do it by the help of a
number line. We have learnt about
number line in addition. Now let`s
see how can we use a number line
for subtraction.

9. Number Line
5 - 3 =

10. 5 - 3 = 2
52

11. 8 – 6 = 2
82

12. 14 – 5= 9
149

13. Subtraction- Moving to the left
 on the number line.
Addition- Moving to the right
 on the number line.
Do not get confused .

14. THANK YOU
FOR WATCHING