Today’s Challenge
Replace the 12 ◯’s below with 1, 1, 2, 2, 3, 3, 4, 4, 5, 6, 7 and 8 so all three lines work out:
◯ + ◯ = 5 = ◯ – ◯
◯ + ◯ = 9 = ◯ × ◯
◯ + ◯ = 8 = ◯ ÷ ◯
Can you complete this MATHELONA challenge?
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 2 up to 84.
The 4th & 6th rows contain the following fourteen numbers:
3 5 10 12 18 20 32 33 35 44 49 54 56 60
Which four different numbers from the list have a sum of 100?
Make 57 Challenge
Can you arrive at 57 by inserting 3, 4, 6 and 11 into the gaps in both lines?
- ◯×◯+◯×◯ = 57
- (◯+◯+√◯)×◯ = 57
Answers can be found here.
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