maths puzzle

[ros09]

stuck on these last 3.
you make the first number out of the others usings them only once.

1. 605 = 25 2 10 1 7 1
2. 968 = 25 2 2 4 4 50
3. 243 = 100 4 5 2 6 10

many thanks

[Old_Geezer]

Having to use them all, or not as in Countdown ?

[Prudie]

I won't post the link for those who want to have fun trying but if you do a search MarkRae gave answers to all these earlier in the week.

[bibblebub]

968 = 4 x ( 4 x (50 - 2) + 2 x 25)

= 4 x (4 x 48 + 50)
= 4 x (192 + 50)
= 4 x 242
= 968

[argorstran]

Do you have to use all the numbers ? If not then 3 could be ;
6 x 4 = 24 , x 10 =240 , +5=245 , -2=243 . (this does not use the 100)

[Old_Geezer]

That's just being cruel Prudie.