Alternate solutions: #3. 8-5=3 #4. 5+8=13 #9. 14-8=6 #13. -8+17=9 #17. -5+5=0 #18. 9-13=1-5 #20. This is constructed in a different way. Usually the number 8 is written by using 7 matchsticks. Here the number 8 is written by using 5 sticks. The left wall should have two sticks. In that case, the proposed solution is inaccurate. That is my opinion. May be erroneous.
11:35 915
1:31 8-5=3
2:06 5+8=13
5:02 14-8=6
9:30 -5+5=0
#13 8+1-1=8 // -8+17=9
My answer of the Bonus Puzzle: 915 (or 513! One match stick can be " ! " that is "factorial" when the red part is on the bottom. )
4+6=10
#3 8-5=3
Alternate solutions:
#3. 8-5=3
#4. 5+8=13
#9. 14-8=6
#13. -8+17=9
#17. -5+5=0
#18. 9-13=1-5
#20. This is constructed in a different way. Usually the number 8 is written by using 7 matchsticks. Here the number 8 is written by using 5 sticks. The left wall should have two sticks. In that case, the proposed solution is inaccurate. That is my opinion. May be erroneous.
#13 8+1-1=8?
#4 5+8=13
6-5=1 !!!!
-6
#9 14-8=6
B) 915
13-9=4
13. 8+1-1=8
9. 14-8=6
#4 5 + 8 = 13; #17 -5 + 5 = 0; bonus 013
4. 5+8=13
#17 -5+5=0
17. -5+5=0
17) -5+5=0
915
6/////15
#Bonus 915
4 + 8 =1; move one stick?; But you move two (2) sticks: Get it right...lier lier pants on fire
///+3///
///-8///
[f-[f
8-5=3