Page 17 - NUMINO Challenge_A1
P. 17
Opening a Lock
Type Study There is a lock with green, yellow, and blue buttons, as shown below.
This lock can be opened by pushing the buttons according to the
following conditions. Conditions
One button of each color must be pushed.
The numbers on the green buttons must be
greater than 5.
7526 The numbers on the yellow buttons must
7526 be odd numbers.
7526 The same number cannot be pushed more
than once.
Find all combinations of numbers that can open this lock and write
them in order from top to bottom.
1 What are the numbers that can be pushed on the 7 5 2 6
green and yellow buttons? 7526
2 The picture on the right is a tree 2
diagram that shows the numbers 5
that can be pushed in the order of 6
green-yellow-blue. Fill in the blanks.
3 Find all combinations of numbers that can open the lock, and fill in
the blanks.
652
14 NUMINO Challenge A1
Type Study There is a lock with green, yellow, and blue buttons, as shown below.
This lock can be opened by pushing the buttons according to the
following conditions. Conditions
One button of each color must be pushed.
The numbers on the green buttons must be
greater than 5.
7526 The numbers on the yellow buttons must
7526 be odd numbers.
7526 The same number cannot be pushed more
than once.
Find all combinations of numbers that can open this lock and write
them in order from top to bottom.
1 What are the numbers that can be pushed on the 7 5 2 6
green and yellow buttons? 7526
2 The picture on the right is a tree 2
diagram that shows the numbers 5
that can be pushed in the order of 6
green-yellow-blue. Fill in the blanks.
3 Find all combinations of numbers that can open the lock, and fill in
the blanks.
652
14 NUMINO Challenge A1
