Addition of two numbers - missing number

Addition of two numbers - missing number

Course
Mathematics
Grade
Year 4
Section
Addition
Outcome
Add two digit numbers - missing number
Activity Type
Video
Activity ID
3928

Testimonials

What a brilliant site you have!!! I love it, especially as it saves me hours and hours of hard work. Others who haven't found your site yet don't know what they are missing!

It is quite frankly the best money I have ever spent on my child. I really cannot thank you enough for providing this, it really is brilliant.

You have the most amazing program. Everybody loves it and the student's results have been in the high 90%'s, it's definitely due to your program.

aasl award

Awarded June 2012
“Best Educational Website
for Teaching and Learning”


  • Year 4
    • Number and Algebra
      • Number and place value

        • ACMNA073 – Apply place value to partition, rearrange and regroup numbers to at least tens of thousands to assist calculations and solve problems

  • 5 – Year 5
    • 5.NA – Number and algebra
      • 5.NA.3 – Describe spatial and number patterns, using rules that involve spatial features, repeated addition or subtraction, and simple multiplication.

      • 5.NA.1 – Apply additive and simple multiplicative strategies and knowledge of symmetry to:

  • 6 – Year 6
    • 6.NA – Number and algebra
      • 6.NA.1 – Apply additive and simple multiplicative strategies flexibly to:

        • 6.NA.1.a – Combine or partition whole numbers, including performing mixed operations and using addition and subtraction as inverse operations

      • 6.NA.3 – Describe spatial and number patterns, using:

        • 6.NA.3.b – Rules that involve spatial features, repeated addition or subtraction, and simple multiplication.

  • KS2.Y3 – KS2 Year 3
    • Year 3 programme of study
      • KS2.Y3.N.AS – Number - addition and subtraction

        • Pupils should be taught to:

          • KS2.Y3.N.AS.4 – Solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction

  • 2 – Grade 2
    • 2.NBT – Number & Operations in Base Ten
      • Mathematics

        • 2.NBT.5 – Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.