Chico’s cards are all different. There is a number from 1 to 8 on each card.
Chico has chosen four cards that add up to 20.
What are they?
There are seven different possibilities. Try to find them all.
What if Chico has three cards that add up to 16?
1856
2873
2846
7346
8354
7256
1847
826
Well done for finding all the totals for four cards – 10 points to you 🙂 – could these answers be organised systematically to ensure that all the totals have been found?