Year 3 Maths: addition and subtraction

By Mr. Setchell on Friday, October 6, 2017 in Maths, Year 3. 3 Comments


Today, we all got together in the hall to learn how drawing can help us with maths. We drew bar models to help us understand the relationship between addition and subtraction. We started by telling number stories about how many fingers Mr. Adkins was holding up. By the end of the lesson, we could reason from

1748 + 50 = 1798


50 + 1748 = 1798
1798 – 50 = 1748
1798 = 1748 + 50
1748 = 1798 – 50

and lots more!


What can you find by using this relationship?

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  • Mrs Williams says:

    Super reasoning Year 3! I saw your maths lesson today and I was very impressed by your concentration, the effort you were putting into your work and your mathematical conversations! Keep it up!
    Mrs Williams

  • Jack L says:

    Hello Bournville Junior School. I loved that maths lesson and I especially enjoy maths.

  • Mr. Setchell says:

    That’s great to hear, Jack. Remember: easy is boring; challenging is interesting.