Page 109 - Start Up Mathematics_1

Before, After, Between

• A number just before any number is one less than it.

For example, 75 is before 76 (75 = 76 – 1)

• A number after any number is one more than it.

For example, 34 is after 33 (34 = 33 + 1)

• A number between two numbers is in their middle.

For example, 45 is between 44 and 46 (44 45 46)

11 Colour the box with the correct answer.

(a) 29 is before 28 30 31

(b) 48 is after 47 49 46

(c) 90 is before 89 92 91

(d) 55 is before 56 54 57

(e) 87 is before 85 86 88

(f) 76 is after 78 75 77

12 Write the number that comes before, after or in between.

(a) 49 (b) 79 (c) 68 70

(d) 54 (e) 80 (f) 89 91

13 Fill in the boxes.

(a) 40 42 45

(b) 20 22

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