TheLearnDen

Year 4 · Maths

Estimate Calculations And Check Answers

Year 4 learners practise checking answers using inverse operations and estimating.

The activities include Check Subtraction Calculations by Using Addition, Use Addition to Check Subtractions, Use Rounding to Estimate Answers. The checked support below includes video, teaching, lesson, interactive. Open a resource in its provider's website and choose the format that best helps the learner explain the idea independently.

Activities covered

  • Check Subtraction Calculations by Using Addition
  • Use Addition to Check Subtractions
  • Use Rounding to Estimate Answers

Checked learning resources

  • Estimate Answers | KS2 Maths Concept Video

    Twinkl · Video · Account may be required

    This Year 4-listed KS2 concept video models estimating calculation answers step by step; it complements the exact activity task of rounding each addend to the nearest ten or hundred before adding.

  • Review using known facts and strategies to accurately and efficiently worksheet and quiz downloads

    Oak National Academy · Teaching · Opens on the provider website

    Free worksheet, starter quiz and exit quiz downloads for the Oak lesson Review using known facts and strategies to accurately and efficiently .

  • Checking Calculations | Addition And Subtraction | Y4 Maths

    Twinkl · Lesson · Account may be required

    Year 4 lesson pack for checking addition and subtraction answers using the inverse operation and finding missing numbers in calculations.

  • Thinking of a Number

    Mathsframe · Interactive · Opens on the provider website

    Free interactive for using inverse operations to find missing numbers and check arithmetic calculations.

  • Review using known facts and strategies to accurately and efficiently

    Oak National Academy · Video · Opens on the provider website

    Review using known facts and strategies to accurately and efficiently. This Year 4 Oak lesson includes teacher explanation, worked examples and pupil questions showing how to use additions to check subtractions. Four-dig

  • Estimation For KS2 Using Rounding | Addition & Subtraction

    Twinkl · Teaching · Account may be required

    Estimation For KS2 Using Rounding | Addition & Subtraction. This Year 4 Twinkl resource provides modelled maths teaching or printable practice to estimate the answer to an addition by rounding off numbers to the nearest

  • Daily 10 (rounding & estimation mental maths)

    Topmarks · Interactive · Opens on the provider website

    Daily 10 (rounding & estimation mental maths). This interactive maths activity gives immediate-feedback practice to estimate the answer to an addition by rounding off numbers to the nearest hundred or ten.

  • Check Subtraction Calculations by Using Addition

    Khan Academy · Interactive · Opens on the provider website

    Check Subtraction Calculations by Using Addition. These interactive maths questions give worked hints and practice to use additions to check subtractions. Four-digit numbers are used.