Open Middle®
Directions: Using the digits 0 to 9, at most one time each, place a digit in each box to make a true statement.
Hint
How does a negative exponent result in a fractional solution?
How do we know where the 1 should go?
How do we know where the 1 should go?
Answer
There are multiple answers such as:
3^ (-2) = 1 / 09
7 ^ (-2) = 1 / 49
8 ^ (-2) = 1 / 64
2 ^ (-3) = 1 / 08
Source: Daniel Luevanos
3^-2=6/54
Good spot Joe! 🙂
Using your appraoch I also found 3^-2 = 9/81
there are 43 solutions
7^-2 = 1/49