Page 86 - NUMINO Challenge_C2
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3 An triangular piece of paper is folded. Then, it is cut and punctured as
shown below. Complete the unfolded diagram.

4 Mike folded a calendar such that the number 11 is on top. He then
punctured the paper as shown below. Including 11, what is the sum of
the numbers with a hole in the same position as 11?

Mon Tue Wed Thu Fri Sat Sun 11
1234567
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31

83Geometry
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