Page 30 - NUMINO Challenge_D1
P. 30
Problem solving Key Points
1 The sums of the three numbers in each line must First, find the
be equal. Use numbers from 1 to 11 without number that goes in
repetition, to fill in the , so that the sum of the the middle .
three numbers in each line is the greatest
possible sum.
2 Use numbers from 1 to 16 without repetition, so The sum of the four
that the sums of the four numbers in each
straight line are equal and the sum of the eight numbers in each
numbers on the vertices of each octagon are
equal. straight line is
(1 2 3 15 16) 4.
1 11
12
93
2
27Number and Operations
1 The sums of the three numbers in each line must First, find the
be equal. Use numbers from 1 to 11 without number that goes in
repetition, to fill in the , so that the sum of the the middle .
three numbers in each line is the greatest
possible sum.
2 Use numbers from 1 to 16 without repetition, so The sum of the four
that the sums of the four numbers in each
straight line are equal and the sum of the eight numbers in each
numbers on the vertices of each octagon are
equal. straight line is
(1 2 3 15 16) 4.
1 11
12
93
2
27Number and Operations
