Question

Use the numerals 1,7,7,7, and 7 to create the number 100

Answer 1

177 - 77 = 100

Explanation:

there are basically 4 7s

77-77 = 00

177 - 77 = 100

hope this helps （＾▽＾）

Answer 2

`77/.77\cdot1`

Explanation:

What we're basically looking for here are ways to get 100 using these numbers.

My immediate first thought was "can we divide the 7's by some 7's to get 100?"

I know that
`7 / .7=10`, so I had the idea to make it
`77 / .77 = 100`. This means that we can use the number 7 four times in the equation
`77 / .77=100`.

However, we're still missing a 1 that we need to include. This is easy, we can just multiply
`77 / .77` by 1.

So in conclusion, we get
`77 / .77\cdot1`

Hope this helped!