Helping Students with PSLE Mathematics - NIE Mathematics ...
Helping Students with PSLE Mathematics - NIE Mathematics ...
Helping Students with PSLE Mathematics - NIE Mathematics ...
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Table 1 consists of numbers from 1 to 56. Kay and Lin are given a plastic<br />
frame that covers exactly 9 squares of Table 1 <strong>with</strong> the centre square<br />
darkened.<br />
d<br />
(a) Kay puts the frame on 9 squares as shown in the figure below.<br />
3 4 5<br />
11 13<br />
19 20 21<br />
3+4+5+11+13+19+20 13 19 = 96<br />
96 ÷ 8 = 12<br />
Alternate Method<br />
4 x 24 = 96<br />
96 ÷ 8 = 12<br />
What is the average of the 8 numbers that can<br />
be seen in the frame?