Al's answer to Christine's Primary 4 Maths Singapore question.
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Cant use model.
Multiples of 3:
3,6,9,12,15,18,21,24,27,30
Multiples of 3 (+1):
4, 7, 10, 13, 16, 19, 22, 25, 28, 31
Multiples of 4:
4,8,12,16,20,24,28,32,36,40
Multiples of 4 (+3):
7, 11, 15, 19, 23, 27, 31, 35, 39, 43
Multiples of 5:
5,10,15,20,25,30,35,40,45,50
Multiples of 5 (+4):
9, 14, 19, 24, 29 ,34, 44, 49, 54
Common multiple :19
ANS:19
Multiples of 3:
3,6,9,12,15,18,21,24,27,30
Multiples of 3 (+1):
4, 7, 10, 13, 16, 19, 22, 25, 28, 31
Multiples of 4:
4,8,12,16,20,24,28,32,36,40
Multiples of 4 (+3):
7, 11, 15, 19, 23, 27, 31, 35, 39, 43
Multiples of 5:
5,10,15,20,25,30,35,40,45,50
Multiples of 5 (+4):
9, 14, 19, 24, 29 ,34, 44, 49, 54
Common multiple :19
ANS:19
Date Posted:
4 years ago
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