AC Lim's answer to Sarah's Primary 5 Maths Whole Numbers Singapore question.

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AC Lim
Ac Lim's answer
12425 answers (A Helpful Person)
1st
Notice The last digit
—-> 1 to 5
<—- 6 to 0
119 last digit is 9,
120 119 118 117 116 is column 2.
Each Row have 5 numbers
120 /5 = 24 since 119 in the same row...
Therefore 119 in row 24.
Richard was in row 24 column 2.
Hope this helps