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Oak National Academy
Oak National Academy
Teachers
Pupils
Year 5

Problem solving with integer addition and subtraction

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Lessons (10)

  • Using and explaining addition strategies

    In this lesson, we will be learning how to use different addition strategies (e.g. partitioning, commutativity and rounding and adjusting) in order to solve magic squares.
    1 Slide deck
    1 Worksheet
    1 Quiz
    1 Video

  • Using and explaining addition and subtraction strategies

    In this lesson, we will be learning how to use the most efficient addition and subtraction strategies. We will apply this knowledge to solving addition pyramids.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video

  • Adding and subtracting using multiples of 10, 100, 1000, 10 000 and 100 000

    In this lesson, we will learn how to use the 'derived facts' and 'make 10' strategies to solve equations involving multiples of 10, 100, 1000, 10 000 and 100 000.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video

  • Adding and subtracting using the 'round and adjust' strategy

    In this lesson, we will learn how to use the 'round and adjust' strategy to solve addition and subtraction equations.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video

  • Adding and subtracting using partitioning

    In this lesson, we will use partitioning to add and subtract large integers, both where regrouping is required and where it is not needed.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video

  • Rounding to estimate

    In this lesson, we will apply our understanding of rounding to the nearest multiples of 10 000 and 1000 to estimate the answer to addition equations.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video

  • Adding using the column method

    In this lesson, we will learn how to use the column method in order to solve addition equations.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video

  • Subtracting using the column method

    In this lesson, we will learn how to use the column method in order to solve subtraction equations. We will also learn how to represent equations using bar modelling.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video

  • Problem solving using the column method

    In this lesson, we will learn how to apply our understanding of the column method to finding and fixing errors and completing unfinished column method calculations.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video

  • Solving multi-step addition and subtraction problems

    In this lesson, we will be applying the addition and subtraction strategies that we have learned to word and real life problems.
    1 Slide deck
    1 Worksheet
    2 Quizzes
    1 Video