Page 72 - ICSE Math 1

10. Colour the box with the bigger number red and with the smaller number
green.

(a) 7 9 (b) 15 12 (c) 6 14

(d) 13 11 (e) 18 20 (f) 10 16

(g) 12 14 (h) 17 19 (i) 20 10

11. Colour the box with the biggest number red and with the smallest
number green.

(a) 11 12 17 (b) 15 7 16

(c) 9 13 10 (d) 18 13 14

(e) 5 17 16 (f) 19 20 14

(g) 15 13 9 (h) 11 18 12

Before, After, Between

Look at the number line.
19 comes in between
18 and 20.
12 comes before 13.

10 11 12 13 14 15 16 17 18 19 20

16 comes a er 15.

You Should Know

 A number just before any number is one less than it.
For example, 12 comes before 13. (12 = 13 – 1)

 A number just after any number is one more than it.
For example, 16 comes after 15. (16 = 15 + 1)

 A number in between the two numbers is in their middle.
For example, 19 is in between 18 and 20. (18 19 20)

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