Crossfigure Puzzle # 7

A challenging puzzle in which all the clues are simple numerical expressions. You will find that for solving the puzzle logic and ingenuity are more important than mathematical skill.

Crossfigure Puzzle

Across

1 12 across divided by seven
4 8 across times two
6 4 down plus fifty-nine
7 A prime number
8 A cube
10 Five times 9 down
12 10 down times seven
14 3 down plus 864
15 20 down minus seventy-eight
17 Eight times 9 down
19 20 down times three
21 5 down minus 110
22 13 down minus eighty-six
23 1 across plus six

Down

1 15 across times five
2 15 across plus twenty-four
3 16 down plus forty-five
4 19 across minus 189
5 4 across minus 136
9 8 across minus 105
10 7 across plus forty-eight
11 A square number
13 17 down plus sixty
16 10 across times two
17 2 down times six
18 17 across minus seventy-six
19 23 across minus twelve
20 A prime number

Solution