1
$\begingroup$

I'm trying to solve this puzzle:

Add operators to make the following equation correct: 4 4 4 4 = 2. Give 3 ways to do so. You are allowed to use brackets if necessary, but no rearranging of numbers or moving the equal sign. You may only use the following math operators: +, -, ×, ÷.

I can think of one or two, but this question wants three ways to do so. Any help in this problem is appreciated.

$\endgroup$
4
  • 1
    $\begingroup$ This is so hard! I doubt whether there are even 3 ways to do so. $\endgroup$
    – user72139
    Nov 4 '20 at 6:37
  • $\begingroup$ Can we add operators between 1 and 0? $\endgroup$ Nov 4 '20 at 6:55
  • $\begingroup$ Guys, this problem is flawed. I typed it wrongly. It should be 4 4 4 4 = 2. I'm editing it now. $\endgroup$
    – Pilot
    Nov 4 '20 at 6:57
  • $\begingroup$ I knew there was something wrong... $\endgroup$ Nov 4 '20 at 7:04
3
$\begingroup$

There are actually four ways to do it (the last one is a variation of the third):

$$4 \div 4 + 4 \div 4 = 2$$

$$4 - (4 + 4) \div 4 = 2$$

$$4 \times 4 \div (4 + 4) = 2$$

$$4 \div (4 + 4) \times 4 = 2$$

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.