Page 94 - NUMINO Challenge_C1
P. 94
Problem solving Key Points
1 The sequence below is made up of pairs of Group the pairs that
numbers. What is the index of (4, 6)? have the same sum
(1, 1), (1, 2), (2, 1), (1, 3), (2, 2), (3, 1), (1, 4), (2, 3), of the two
(3, 2), (4, 1), components.
2 Here is a sequence of fractions. Find the 23rd Find the pattern and
term. use parentheses to
1, 3, 2, 1, 5, 4, 3, 2, 1, 7, 6, group the fractions.
11231234512
91Rules and Numbers
1 The sequence below is made up of pairs of Group the pairs that
numbers. What is the index of (4, 6)? have the same sum
(1, 1), (1, 2), (2, 1), (1, 3), (2, 2), (3, 1), (1, 4), (2, 3), of the two
(3, 2), (4, 1), components.
2 Here is a sequence of fractions. Find the 23rd Find the pattern and
term. use parentheses to
1, 3, 2, 1, 5, 4, 3, 2, 1, 7, 6, group the fractions.
11231234512
91Rules and Numbers
