Page 49 - NUMINO Challenge_B1
P. 49
Type 5-2 Say 100
Two players take turns saying numbers. The player who says 100
wins. The first player chooses a number from 1 to 10. On the next
turn, each player adds a number from 1 to 10 to the opponent's
number. Explain the winning strategy for this game.
1 What are the greatest and the smallest numbers that can be added to the
first player’s number?
2 What number must you say on your turn in order to say 100 on your next
turn?
3 List all the numbers you will have to say in order to say the number in 2 .
4 What is the first number that must be said in order to always win?
5 Who is more likely to win: the first or the second player?
46 NUMINO Challenge B1
Two players take turns saying numbers. The player who says 100
wins. The first player chooses a number from 1 to 10. On the next
turn, each player adds a number from 1 to 10 to the opponent's
number. Explain the winning strategy for this game.
1 What are the greatest and the smallest numbers that can be added to the
first player’s number?
2 What number must you say on your turn in order to say 100 on your next
turn?
3 List all the numbers you will have to say in order to say the number in 2 .
4 What is the first number that must be said in order to always win?
5 Who is more likely to win: the first or the second player?
46 NUMINO Challenge B1
