Are you mathematical genius ?

in mathematics •  8 years ago 

It is necessary to realize the score 30 with the help of basic mathematical operations.

Can you finish for 120seconds ?
[answ: comment]

matematical operation
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55 - 5*5

5 divded by 5 + 5 x 5

How is that 30? This equals 26.

5 divided by 5 = 1

1 + 5 = 6

6 x 5 = 30

Order of operations in a mathematical expression is governed by https://en.wikipedia.org/wiki/Order_of_operations
Multiplication precedes addition.

If parentheses are allowed: 5 * (5 + (5 ÷ 5))