Title: Math Puzzles
Course: Chemistry Revision

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 8 | 1 | 3
- | a | 8 | c
 | 1 | b | 2

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a6b3c1

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 5 | 7
- | a | 7 | c
 | 5 | b | 8

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b7c9

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 0 | 3 | 3
- | a | 6 | c
 | 4 | b | 7

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a5b6c6

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 6 | 5 | 5
- | a | 4 | c
 | 1 | b | 5

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a5b1c0

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 1 | 4
- | a | 1 | c
 | 4 | b | 5

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a4b9c9

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 7 | 9 | 6
- | a | 5 | c
 | 2 | b | 2

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a5b4c4

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 6 | 4 | 7
- | a | 2 | c
 | 4 | b | 0

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a2b2c7

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 0 | 4 | 5
- | a | 9 | c
 | 6 | b | 8

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b4c7

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 7 | 9 | 9
- | a | 7 | c
 | 4 | b | 4

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b2c5

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 7 | 3 | 4
- | a | 1 | c
 | 2 | b | 4

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a5b2c0

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 8 | 2 | 1
- | a | 7 | c
 | 2 | b | 7

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a5b4c4

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 9 | 5
- | a | 5 | c
 | 6 | b | 2

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b4c3

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 1 | 8
- | a | 6 | c
 | 2 | b | 4

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a6b5c4

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 5 | 9 | 8
- | a | 5 | c
 | 1 | b | 3

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a4b4c5

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 8 | 2 | 3
- | a | 8 | c
 | 5 | b | 7

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a2b3c6

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 5 | 9 | 6
- | a | 5 | c
 | 2 | b | 3

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b4c3

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 8 | 9 | 6
- | a | 2 | c
 | 2 | b | 1

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a6b7c5

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 8 | 9 | 5
- | a | 5 | c
 | 4 | b | 3

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a4b4c2

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 3 | 6
- | a | 3 | c
 | 3 | b | 9

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a5b9c7

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 8 | 1 | 5
- | a | 4 | c
 | 1 | b | 4

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a6b7c1

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 4 | 1 | 7
- | a | 3 | c
 | 1 | b | 7

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a2b8c0

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 6 | 6 | 1
- | a | 6 | c
 | 2 | b | 7

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b9c4

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 8 | 6 | 5
- | a | 1 | c
 | 5 | b | 2

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b5c3

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 8 | 1 | 9
- | a | 7 | c
 | 3 | b | 7

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a4b4c2

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 9 | 8
- | a | 7 | c
 | 3 | b | 6

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a6b2c2

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 5 | 1 | 1
- | a | 1 | c
 | 1 | b | 6

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b9c5

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 9 | 2
- | a | 3 | c
 | 3 | b | 4

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a6b5c8

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 6 | 9 | 0
- | a | 6 | c
 | 1 | b | 8

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a5b2c2

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 7 | 7 | 0
- | a | 9 | c
 | 3 | b | 2

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a3b7c8

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 4 | 7
- | a | 2 | c
 | 4 | b | 6

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a5b2c1

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 9 | 6 | 5
- | a | 6 | c
 | 3 | b | 0

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a6b0c5

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 5 | 6 | 8
- | a | 1 | c
 | 3 | b | 7

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a2b5c1

Q: Replace a, b and c with a single digit such that the subtraction is true:

 | 7 | 1 | 0
- | a | 4 | c
 | 4 | b | 9

Write your answer in the format a*b*c* where the *'s are the answers respectively.
A: a2b6c1