Avery made 6 litres of hot chocolate for the 4th annual bonfire with his family. If each cup holds of a litre of liquid, how many cups can Avery fill?

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)