Four Make 999

Choose four different numbers from the table and add them up.

269 373 423 219
319 223 188 288
338 369 323 169
419 388 342 155

How many different ways are there of making 999?

[Note to teacher: Click on the numbers above to select them. Correct solutions will be recorded above
but the application does not check for repeats or the same numbers added in a different order.


Topics: Starter | Arithmetic

  • Rebecca Laura Holly Amy Georgia Tyler & Kieran, Whitby High, Ellesmere Port
  • More Solutions from Whitby Technology College:

    235 + 280 + 212 + 272 = 999
    280 + 280 + 227 + 212 = 999
    272 + 272 + 227 + 228 = 999
  • J. Adam, Purbrook Junior
  • Jasmine in my maths class found 363 + 363 + 273 = 999. Well done!
  • Belvedere Academy Liverpool, Year 7 Set 3
  • 271 + 280 + 291 + 157 (Yasmine)
    265 + 275 + 291 + 168 (Demi)
    We had more but did not have time to put them on.
  • Lauren Livingstone, Holyrood Secondary
  • Mrs Boussouara's maths class found this difficult. Although it made us think about numbers and got our brains working.
  • Holyrood Secondary, Glasgow
  • Mrs Boussouara's Maths class thought this was tricky. We liked doing this .we got it in the end.
    Jack.Farzad .Nicole . (First year).
  • S2, JPA Glasgow
  • 263+255+311+170
  • Kiefer Kids, Cottage Hill In California
  • Tougher than we thought!
  • Primary 7, Meethill Primary Peterhead
  • We managed to get 6 different combinations. Our STAR pupils were Patrick and Jamie. We showed good perseverance throughout this challenge.
  • Transum,
  • Thanks everyone for your comments. Good to hear that this Starter is providing a suitable challenge. Please note that each time this page is loaded a different of numbers appears in the grid above ... just in case you were wondering why the answers mentioned in the comments above do not work for you! Answers are provided below for Transum subscribers.
  • Nic, Glen Eden Intermediate
  • 255+348+158+238.
  • David, Thailand
  • We got nine boys!

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Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.

Try "Three Make 1000", it's a little easier!

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Laptops In Lessons

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Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Laptops In Lessons

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