A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Please help an 8yearold! (it's not me)
Using only the digits 1, 4, 5, and 7, and one addition sign, and one subtraction sign, find a way to get the answer 19. ex: 571+4
 2 years ago
Please help an 8yearold! (it's not me) Using only the digits 1, 4, 5, and 7, and one addition sign, and one subtraction sign, find a way to get the answer 19. ex: 571+4

This Question is Closed

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2it can only have an addition sign and a subtraction sign, no brackets or anything. No powers, bases or anything like that either.

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2basically something you can do on a nonprogramming, elementaryschool calculator

shelovespiano
 2 years ago
Best ResponseYou've already chosen the best response.1can you use the digits more than once?

shelovespiano
 2 years ago
Best ResponseYou've already chosen the best response.1...Well, the closest I can get is 17+54=18 :/

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2XD that's how close I got.

saifoo.khan
 2 years ago
Best ResponseYou've already chosen the best response.0We can use only + and  ?

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2yup, and you can only use each one time.

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2I do so believe that this is the hardest thirdgrade question on openstudy...OTL

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2...ok... why? This is a "threestar" problem on a 3rd grader's hw...it's not possible?

Tiamat
 2 years ago
Best ResponseYou've already chosen the best response.0Does it have to use ALL the digits and signs?

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2yes. the image is a calculator with all the keys you have to use once checked.

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.0can you please check to see if the whole question has be written correctly

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2it is. here is the exact phrasing: Below each calculator, write a number sentence to give the answer shown. The symbols and digits to use are checked on each calculator. the answer is 19. The digits and symbols are 1, 4, 5, 7, , + and =.

Tiamat
 2 years ago
Best ResponseYou've already chosen the best response.0Wait, if that's the exact question, then does it say in the directions to use everything once? If so, then I have to agree with UnkleRhaukus. I can only get as far as 18 with these numbers.

saifoo.khan
 2 years ago
Best ResponseYou've already chosen the best response.0lol, same here.. i dont knw where to add 1. keep on gettinh 18.

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2it does't explicitly say, but all the other questions like that on the same sheet only use each digit once.

Tiamat
 2 years ago
Best ResponseYou've already chosen the best response.0Ahhhh. This is making my brain hurt. Either it's a type of trick question where you do use them more than once, like: 17 + 5  4 + 1 = 19 Or a typo. I'm sorry, I just can't figure this one out. ):

saifoo.khan
 2 years ago
Best ResponseYou've already chosen the best response.0might be a misprint in the book?

cathyangs
 2 years ago
Best ResponseYou've already chosen the best response.2it's not a book...but perhaps.
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.