Four+Fours

= Four fours instructions = Can you combine four number 4s to make every number from one to ten?

Ask your teacher for a set of number cards, and u sing the symbols for addition, subtraction, multiplication, division and brackets, try to combine the four 4 cards into number sentences that make all the numbers from one to ten. Start by experimenting before aiming for a specific number.

You must use all four 4s, but you can use any other symbols you like and you don’t have to use all of them. There are even some blank cards so you can write your own symbols, but you can’t write in any other numbers.

Example: 4 + 4 + 4 ÷ 4 = 9 (4 + 4 + 1, since 4 ÷ 4 = 1)

Challenge 1: Can you make every number from one to ten?

Challenge 2: Can you make every number from eleven to thirty?

Challenge 3: Can you make every number from thirty one to a hundred?

Are there some numbers you can't make? How would you tell if it's impossible to make that number or if you just haven't figured out how?