The Proof! tabletop card game is the inspiration behind our free, online Math Puzzle Challenges. Each carefully constructed puzzle consists of a set of nine cards that hides a challenging equation. This is a hand-picked selection of our math games that focus specifically on multiplication. If you would like, you can create an account to save your progress. Or if you already have an account, you can log in.

1.
Find a Pair of 6's
3.
Find Any Pair Greater Than 100
9.
Find Any Pair Greater Than 50 Using Only Multiplication
11.
Find 4 Different Triplets
12.
Find a Pair of 100's
13.
Find Any Pair Using All 9 Cards
21.
Find 10 Different Quadruplets Less Than 10
22.
Find Any Pair Using Multiplication At Least 3 Times
25.
Find a Pair of 44's
28.
Find Any Triplet Greater Than 100
29.
Find a Pair of 1000's
34.
Find a Pair of 667/1271's
36.
Find Any Pair Greater Than 0 Using All 9 Cards
37.
Find a Triplet of 8/9's
38.
Find 14 Different Pairs Greater Than 0 Using Exactly 3 Cards Each
41.
Find a Pair of 10000's
43.
Find Any Pair Less Than 100 Using All 9 Cards and No Square Roots
45.
Find 5 Different Pairs Greater Than 50 Using the 98, 64, and 16
47.
Find Any Pair Greater Than 0 Using All 9 Cards
48.
Find 15 Different Pairs Greater Than 100