20 Difficult Matchstick Puzzles Only People with High IQ Can Solve

The bonus question is very cool, let's see who can solve it?
20 Difficult Matchstick Puzzles Only People with High IQ Can Solve, Give it a try before checking the solution. Comment if you found an alternate solution.
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[@MATCHSTICK_PUZZLE]

Can you fix 4+1=57 th-cam.com/video/6hqtLQrTY_U/w-d-xo.html

[@Stereo4102]

Also for #3: -5 + 5 = 0 and 3 + 5 = 8.
Also for #6: 6 - 3 = 3.
Also for #7: 2 + 13 = 15.
Also for #9: 13 - 10 = 3.
Also for #14: 7 - 8 = -1 and 1 - 8 = -7.
Also for #16: 17 - 8 = 9.
Also for #17: 4 = 5 -1.
Also for #19: 19 + 0 = 19.
Bonus: 319.

[@benighomni]

My bonus answer: 215!
Turn the 9 into a 5 & put that stick upside down to look like factorial "!"
Extra answer: 512!
If allowed, rotate numbers 180° to change 219 to 612, then turn 6 into 5 & put that stick upside down to make factorial

[@nuranconkar]

For 17 4 = 5-1

[@user-xq8cg3gf5f]

3 !!!!!

[@user-nl1nw5qn2g]

#6)6-3=3

[@user-nl1nw5qn2g]

#16)17-8=9

[@user-nl1nw5qn2g]

#14)7-8=-1

[@user-xq8cg3gf5f]

9-8=1

[@user-nl1nw5qn2g]

#18)3+5=8

[@user-nl1nw5qn2g]

#7)2+13=15

[@user-nl1nw5qn2g]

#1)9+7=16

[@rajeevshrotriya3614]

Answer to question no. 9 can also be 13-10=3

[@user-xq8cg3gf5f]

16-8=8

[@calinhanca5704]

#16 => 1 - 1 + 9 = 9

[@user-xq8cg3gf5f]

9-8=

[@user-xq8cg3gf5f]

...1-1... !!!

[@user-nl1nw5qn2g]

#19)19+0=19

[@nuranconkar]

For 6 we can move a stick from 9 to make it 3 and put that on the minus for 3=3=3

[@Loumtom]

#4 :
7 + 17 = 7 ? // 7 + 1 - 1 = 7
Other
7 - 0 = 7 😊;
#9 :
13 - 10 = 2 ? // 12 - 10 = 2
Other
13 - 10 = 3 😊
#Bonus : 219 ?
319
#Minus : 216, 210 😂

[@godot-lee]

2-move just for fun
#5) -3 + 2 = -1
#8) -2 + 5 = 3
#10) 21 - 18 = 3
#11) -9 = 12 - 21
#12) 8 - 1×3 = 5
#13) 10 + 9 = 19

[@calinhanca5704]

#19 => 19 + 0 = 19

[@user-nl1nw5qn2g]

#Bonus)319

[@archeus22]

1+17=2
Change to
1+ 7=8

[@user-xq8cg3gf5f]

6...

[@user-xq8cg3gf5f]

9+7=16

[@user-xq8cg3gf5f]

....-1...

[@user-cc5ow8hf5k]

1+11=12

[@user-xq8cg3gf5f]

3.....

[@user-nl1nw5qn2g]

＃9)13-10=3

[@nuranconkar]

For 15 0=0=0

[@user-xq8cg3gf5f]

9 -...

[@user-xq8cg3gf5f]

319

[@shealinbanta4169]

Some of them were very hard

[@shealinbanta4169]

I like the music

[@rajeevshrotriya3614]

Answer to question no. 3 can also be -5+5=0

[@user-xq8cg3gf5f]

...0... !!!

[@user-xq8cg3gf5f]

....=1-1

[@calinhanca5704]

#13 => 7 - 8 = -1

[@rasidingombong3918]

1+2=3

[@nuranconkar]

For 19 19+0=19

[@user-vt5rh5wt6h]

0 moving be 9

[@calinhanca5704]

#18 => 3 + 5 = 8

[@user-ds6ki5ep9l]

9+7=16

[@DrCMGupta9605]

319

[@rajeevshrotriya3614]

Answer to question no. 7 can also be 2+13=15

[@budiessa8569]

9 + 7 = 16

[@user-yz3cq5uv9j]

319