Open Middle®
Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to create a true statement.
Hint
Can you show two numbers you could add together using your fingers?
Answer
There are many answers. Here are some possibilities:
1 + 2 = 3 and 4 + 5 = 9; 2 + 4 = 6 and 5 + 3 = 8.
1 + 2 = 3 and 4 + 5 = 9; 2 + 4 = 6 and 5 + 3 = 8.
Source: Stephen Caviness
1+2=3
4+5=9
1+3=4
2+5=7
1+4=5
2+6=8
1+5=6
2+3=5
1+6=7
3+5=8
1+7=8
3+6=9
1+8=9
4+3=7
2+7=9
NOT 2+3=5