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# Maths Fun

I am quite clever at Maths this but this is really bugging me, I saw this on another forum

Make 69 using the following numbers: 7 8 8 9 9

You can only use each number once and can only add, subtract, multiply and divide

Good Luck all I am gazzumped

Make 69 using the following numbers: 7 8 8 9 9

You can only use each number once and can only add, subtract, multiply and divide

Good Luck all I am gazzumped

9 - 7 = 2

subtract the 2

=69

Original Poster

9x8 is 72....71 is prime

John

Original Poster

Do I have to use each digit as an individual number?

square root 9=3

72-3=69

8 - 7 = 1, 69 x 1 = 69

Yes that's cheating lol, what would Vorderman say!

Original Poster

Such as

68 is 8 X 9 = 72, 7 - 9 = 2 / 8 = 4, 72 - 4 = 68

70 is 8 X 9 = 72, 9 - 7 = 2, 72 - 2 = 70

haha... pretty sure 9 x 8 is 71 :thumbsup:

Banned

Thought that myself but would it count since

You can only use each number once and can only add, subtract, multiply and divide

Original Poster

Turn one 9 upside down to make it a 6

9-6 = 3

Multiply the totals of the above two sums 23 x 3 = 69

NV