To represent something means to show something in a different way.

Represent an equation in a part-part-whole model correctly

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

Which bar model represents the equation? 739 = 195 + ___ + 382 

Which equation correctly represents this bar model?

Summing the known parts and subtracting from the whole.

Finding the total of the whole and the known parts.

Summing the known parts and counting on to the whole.

Which strategies can be used to find the value of a missing part?

Calculate the missing value by mentally adding the known parts first. 21.6 = {{ }} + 11.2 + 5.3

Find the missing value in this equation. 5 × 150 = 250 + {{ }} + 175

Find the missing value in this equation. 110 + 156 + 367 + {{ }} = 820

Match the number of minutes to the correct number of hours.

Alex was training for a swimming race. On Monday he swam 1.05 km. On Wednesday he swam 1,150 m and on Friday he swam 1.2 km. How far did he swim? Give your answer in metres. {{ }} m

Complete the column subtraction to find the difference.

Use a counting on strategy to find the difference between 2,345 and 1,967

Find the difference between 10 and 9.376 using a counting on strategy.

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