Page 111 - Start Up Mathematics_1
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15 Find the missing numbers.
(a) 90 87
(b) 82 80
(c) 63 61
(d) 53 51
(e) 45 41
Ordering
Increasing order → small < big < bigger < biggest
Decreasing order → big > small > smaller > smallest
For example, 30, 35, 36, 42 are in increasing order
67, 63, 45, 24 are in decreasing order
16 Arrange the numbers in increasing order.
(a) 19, 15, 31, 28 15 19 28 31
(b) 22, 45, 10, 56
(c) 73, 87, 62, 81
(d) 98, 60, 20, 35
(e) 80, 21, 95, 47
(f) 93, 90, 72, 40
17 Arrange the numbers in decreasing order.
(a) 20, 23, 32, 19 32 23 20 19
(b) 42, 54, 37, 68
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