Page 55 - Start Up Mathematics_1

Subtraction can be done using fingers. For example, let’s subtract 3 from 8.

• To subtract, count the greater number on your fingers.

So, count 8 fingers and fold the remaining fingers.

• Close as many fingers as the smaller number.

So, close 3 fingers.

• The remaining fingers is the answer.

So, 8 – 3 = 5.

3 Subtract the numbers.

(a) 6 – 6 = (b) 8 – 5 = (c) 4 – 1 =

(d) 9 – 7 = (e) 5 – 3 = (f) 3 – 2 =

4 Match the correct answer.

(a) 4 – 2 (i) 5

(b) 7 – 6 (ii) 4

(c) 8 – 3 (iii) 2

(d) 6 – 3 (iv) 1

(e) 9 – 5 (v) 3

5 Put a tick () or a cross ().

(a) 3 minus 1 = 2 (b) 5 minus 2 = 4

(c) 8 minus 4 = 5 (d) 6 minus 5 = 1

(e) 7 minus 2 = 5 (f) 9 minus 4 = 3

47