Exercise 3A
Question 1
(a) 1, 2, 3, 4, 6, 12
(b) 1, 2, 7, 14
(c) 1, 19
(d) 1, 3, 7, 21
(e) 1, 2, 3, 4, 6, 8, 12, 24
(f) 1, 23
(g) 1, 2, 3, 6, 7, 14, 21, 42
(h) 1, 5, 17, 85
(i) 1, 73
(j) 1, 2, 4, 23, 46, 92
Question 2
(a) 2, 4, 6, 8, 10
(b) 4, 8, 12, 16, 20
(c) 6, 12, 18, 24, 30
(d) 9, 18, 27, 36, 45
(e) 10, 20, 30, 40, 50
Question 4
List of the multiples of 7 between 1 and 75 – 7, 14, 21, 28, 35, 42, 49, 56, 63, 70
Question 4
The all multiples of 9 up to 100 – 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99
Question 5
(a) The ninth multiple of 75-9 × 75
= 675
(b) The multiples of 10 between 150 and 200 – 160, 170, 180, 190
Question 6
Addition Facts
Even + Even = Even, Example – 2+6=8
Odd + Odd = Even, Example – 3+5=8
Even + Odd = Odd, Example – 4+3=7
Multiplication Facts
Even Even = Even, Example – 24=8
Odd Odd = Odd, Example – 35=15
Even Odd = Even, Example – 25=10
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