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Mathematics: Number
Level indicator: Level 1i - Counting From One Level 1ii - Advanced Counting Level 2 - Early Additive Level 3 - Advanced Additive and Early Multiplicative Level 4 - Advanced Multiplicative Level 5 - Advanced Poportional

Number strategy

Advanced additive and early multiplicative

 Number strategy progression
About the Exemplars
Progress indicators
What the work shows The learning context Where to next Curriculum links
What the work shows

The task

The teacher set the problem: "Billy and Sarah each have $12 and Sharon has $18. How much money have they got altogether?" He asked the students to explain how they got their answer.

Double 12 is 24, and 10 more makes 34, and then 8 more is 42. Images of student problem solving process

Ineke's work shows that she is able to partition and recombine numbers to solve a problem.


I went: 20 plus 10 plus 12, which is 42. Images of student problem solving process

Marco's work shows that he is able to partition and recombine numbers to solve a problem.


That's 7 lots of 6, which is 42. Images of student problem solving process

Nick's work shows that he is able to partition and recombine numbers to solve a problem.

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