5,000,000,000
8
192.
Examples of sums using four fives to get 80:55+5×55!!×5+√(5×5)(55-5!!)/.5(5×5-5!!)/.55!-5×5-5!!((5!!/5)!)!/5×.(5)
9
Six of them
80/5=16
Three Pounds and Eighty-Five pence = 385 pence. 385 divided by 5 = 77
80 x 5 = 400
there is 91 fives in 455
Four fives
6 fives
4 fives, which would leave you with 0.4 fives, which would leave you with 0.4 fives, which would leave you with 0.4 fives, which would leave you with 0.4 fives, which would leave you with 0.4 fives, which would leave you with 0.
8
123.45x66
40
esay
Two