Take Three Away

The hardest of the Take Away sets: exactly three matches have to go.

8 puzzles

1. 1 · No. 412Addition: 8 + 6 = 720 matches · remove 3 matches
2. 2 · No. 413Subtraction: 48 − 7 = 923 matches · remove 3 matches
3. 3 · No. 414Addition: 3 + 9 = 7825 matches · remove 3 matches
4. 4 · No. 415Subtraction: 62 − 7 = 9830 matches · remove 3 matches
5. 5 · No. 416Subtraction: 89 − 5 = 6933 matches · remove 3 matches
6. 6 · No. 417Two Operations: 9 + 4 + 3 = 1929 matches · remove 3 matches
7. 7 · No. 418Two Operations: 1 − 9 + 3 = 825 matches · remove 3 matches
8. 8 · No. 419Two Operations: 7 − 9 + 9 = 1829 matches · remove 3 matches