Want to Improve Your IQ? This Matchstick Puzzle is the Answer!

[@Tengrigen]

#20: 8-7=1-0 Bonus: smallest number 'is -595

[@harshapati5369]

19) -1+8=7

[@erikaesther]

18) 10 - 2 = 8

[@DrCMGupta9605]

399 puzzle number 20 is not correct it is not 8+7=16

[@mikegilbert2500]

🤔 These also work 🧐 (compiled on the fly; we have a gaffe at the end) on #2 -- 5+13=18 on #3 -- 21-6=15 on #5 -- 19+18=37 on #6 -- 8-8=0 on #7 -- 9+5=14 on #13 -- 15-7=8 on #17 -- 1/1=8-7 on #19 -- -1+8=7 #20 is faulty; should have started 8-7=19; THEN you'd get 8+7=15; if spacing was no issue, then it should be 8-7=1-0 🤓 Bonus baby is -595 OR (if it has to be a positive number) 399😎

[@IanYHKang]

6) 8-8=0 13) 15-7=8 17) 1/1=8-7 19) -1+8=7 20) Your Mistake !! B) -595. If only positive, 399

[@OlgaEtelCapdevila]

#17 1/1=8-7 // 1x1=0+1

[@OlgaEtelCapdevila]

#4 -8+8+5=5

[@OlgaEtelCapdevila]

#19 - 1+8=7

[@OlgaEtelCapdevila]

#3 21-6=15

[@user-woosmath]

#20 Error 0 - 7 = 1 - 8 Bonus -595

[@빵빵-c8u]

#20) 0 -7=1 -8

[@OlgaEtelCapdevila]

#Bonus - 595

[@OlgaEtelCapdevila]

#13 15-7=8

[@afonsobarreiros7291]

Bonus 995

[@OlgaEtelCapdevila]

#2 5+13=18

[@redzuanmansor666]

16 + 2 = 18

[@harshapati5369]

Bonous- 399

[@OlgaEtelCapdevila]

#6 8-8=0

[@OlgaEtelCapdevila]

#20 🙃🙃🙃

[@khayratana7516]

8+7=15 not 16

[@rosalebsak1906]

С. каких пор 8+7=16?

[@661cyclist]

no. 20 ... eh??? It is not solvable. You can do it by moving two sticks: - 8 - 7 = -15

[@OlgaEtelCapdevila]

Also with two -9-7= -16

[@OlgaEtelCapdevila]

#18 10-2=8