Max Maths, Year 3, Learn together, Adding and subtracting volumes (2)

In a Year 3 mathematics lesson from Max Maths, students learn to add and subtract volumes with practical examples. One of the problems involves Tya, who has two flasks of water. Each flask contains 1 litre and 140 millilitres of water. The students are tasked with finding the total volume of water in both flasks. By adding the volumes together—1 litre plus 140 millilitres from the first flask and the same from the second—they calculate that the combined volume is 2 litres and 280 millilitres. This exercise helps students understand how to add different units of volume together to find a total.

Another problem in the lesson involves filling a fish bowl with water using 6 bottles, each containing 1 litre of water. The students are asked to calculate the total volume of water in the fish bowl. By understanding that each bottle contributes 1 litre, they easily determine that the fish bowl contains a total of 6 litres of water. In a third scenario, students learn about subtraction of volumes. Jade has a bottle containing 2 litres and 360 millilitres of orange juice and pours 1 litre and 250 millilitres into glasses. The students must work out how much juice remains in the bottle. By breaking down the volumes into millilitres and subtracting accordingly, they find that 1 litre and 110 millilitres of juice are left. These exercises enhance the students' ability to manipulate and understand volumes in both litres and millilitres.