To represent something means to show something in a different way

Use mental strategies and known facts to calculate the value of a missing part

Maths

In this unit pupils will identify structures within stories. They will use their knowledge of structures to create stories and use their knowledge of additive structures to solve problems. In the future it pupils will use the concept of 'same sum' to simplify and solve addition problems.

In the prior unit pupils used the most efficient and reliable strategy to find the change. In this unit pupils will  identify structures within stories and use their knowledge of structures to create stories and use their knowledge of additive structures to solve problems.

Use knowledge of part-part-whole structure to solve additive problems

True or false. The missing part can only be found by using a repeated subtraction equation.

Which equations represent this bar model?

Which equations could solve this problem? Jun is making a fruit drink. He has 1.5 l altogether. He has 0.8 l of orange juice and 300 ml of pineapple juice. The rest is water. How much water is needed?

Solve this missing number problem by adding the known parts first. The missing part is {{ }}.

Use repeated subtraction. Aisha walks for 90 minutes from home to the local pool. She walks for 35 minutes, rests for 10 minutes then continues. For how much longer does she walk? {{ }} minutes.

Alex is making a fruit drink. He needs 1.5 l altogether. He pours 0.8 l of orange juice and 300 ml of pineapple juice. The rest of the drink is water.
How much water is needed? {{ }} l

Calculate the missing addend in this bar model.

What is the unknown in this problem? Jacob makes a cake using flour, butter and sugar. He uses 500g of flour and 200 g each of butter and sugar.

Which two addends would make the total of 375?

Calculate using an efficient strategy. Aisha buys two books. One costs £12.99 and one costs £7.99    What is the total cost of the books? £{{ }}

Complete the column subtraction to find the difference.

This lesson will soon be taken down.

Use mental strategies and known facts to calculate the value of a missing part

Lesson outcome