Page 57 - Touchpad Mathematics V1.0 C1

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2. Cross out ( ) the objects to subtract and find the answer. One has been
done for you.

a. b. c.

7 – 2 = 5 6 – 1 = 4 – 1 =

d. e. f.

8 – 3 = 3 – 2 = 5 – 3 =

SubtraCting ZerO (0)

Mona has 5 apples. She eats nothing.
How many apples does she still have?

Clearly, 5.

So, 5 – 0 = 5

Similarly, we have 6 – 0 = 6, 4 – 0 = 4 and so on.

When we subtract zero from a number, the number remains the same.

SubtraCting One (1)

Rakhi has 4 apples. She eats one apple.

How many apples are left?

Clearly, 3.

So, 4 – 1 = 3

Similarly, we have 8 – 1 = 7, 5 – 1 = 4 and so on.

When we subtract one from a number, we get the previous number.

55
Subtraction up to 20