Page 47 - Start Up Mathematics_3

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Subtraction

Let’s Recall ...

• Subtraction means taking away. It is also called the difference between
two numbers.

• When a number is subtracted from itself, the answer is zero.

• When zero is subtracted from a number, the answer is the number itself.

• We cannot subtract a bigger number from a smaller number.
• Every addition has two subtraction facts and every subtraction has two addition

facts.

1 Solve the following.

H T O H T O H T O
(a) 3 6 7 (b) 4 5 9 (c) 6 9 0

– 5 3 – 1 4 8 – 5 8

H T O H T O H T O

(d) 7 9 6 (e) 9 2 4 (f) 7 4 1

– 4 7 – 6 5 4 – 3 6 8

2 Write the subtraction facts for the following.

(a) 12 + 4 = 16 (b) 8 + 9 = 17 (c) 20 + 3 = 23 (d) 18 + 11 = 29

3 Saumya has ` 150. She buys a packet of sweets for ` 115. How much money is she
left with?

4 There are 58 students in Sahil’s class. Quick Tip
He has 42 chocolates with him. How Subtraction can be used to find:
many more chocolates does he need to 1. What was taken away?
distribute among all the students of his 2. How many more are needed?
class?

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