Topics: Starter | Arithmetic | Investigations | Problem Solving

• Class 1D, Linwood High School Renfrewshire
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• Class 1 found 8 different ways. ☆☆☆ + ☆☆☆ + ☆☆☆ , ☆☆☆ + ☆☆☆ + ☆☆☆ , ☆☆☆ + ☆☆☆ + ☆☆☆ , ☆☆☆ + ☆☆☆ + ☆☆☆ , ☆☆☆ + ☆☆☆ + ☆☆☆ , ☆☆☆ + ☆☆☆ + ☆☆☆ , ☆☆☆ + ☆☆☆ + ☆☆☆ , ☆☆☆ + ☆☆☆ + ☆☆☆
• Jon Brian, British School of Bucharest
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• Inspired by those who found 8 correct answers, 5B from the British School of Bucharest found 10!
  Thanks for the stimulus!
• Rhonda, Rocky Mtns
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• Excellent exercise.
• Laverne, China
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• WOW this exercie blew my mind!!! My year 2 class found ☆☆☆ different solutions ;).
• Shamelddon, London,UK
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• This is the best website that I've ever come across,it is very educational,engaging and amazingly interesting.It can engage all age;old or young.Well done.
• Jackie,
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• This really made me think thanks.
• Celeste McKenzie, CT
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• This is a great exercise. I have a variation: Using the numbers 1-9 only once each, make a true addition sentence where 2 3-digit numbers add up to a third 3-digit number.
• Carol, London
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• Brilliant exercise.
• Year 6 Class, Santa Clara Primary School - Western Australia
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• We got a new record, we were able to achieve 14 different solutions, not using numbers swapped around.
• Gemma Robinson, Leicestershire
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• Very good exercise that gets your brain thinking.
• Joshua Iyobhebhe, Bishop High
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• I loved this starter my favourite one so far this is the best website ever the kids always get exited when I put a starter up on the board.
• Mr G, Western Australia, Australia
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• Our man Lachie finished this Mathematical calculation in under one minute..........With an awesome haircut too!
• Mr Webber, Pencoed School
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• 7/1 thought this was great!
• Ibrahim, Byron Court Primary, Middlesex
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• I got ☆☆☆ , ☆☆☆ , ☆☆☆ . Took a bit of trail and error.
• Mandy,
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• Incredible! My class found 97 solutions!
• Mrs Maclean, St Andrews RC High School
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• This is a great starter activity! Not only did my S2 class calculate many different soltions they calculated exactly how many different solutions are possible. They loved the challenge!
• Sycamore Class, West Borough Primary School
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• A supreme game! The girls were much quicker than the boys. We found ten solutions before starting our day!
• Mariz, Agutaya Palawan
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• Excellent exercise!!!
• D Brunner, Ilfracombe
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• There are actually only 5 solutions with all others being a permutation of the digits in the columns.
  Hundreds column can only be digits ☆☆☆ or ☆☆☆ (any arrangement)
  If ☆☆☆ then tens column can only be ☆☆☆ , ☆☆☆ or ☆☆☆ , with remaining digits in the units column.
  If ☆☆☆ then tens column can only be ☆☆☆ or ☆☆☆ with remaining digits as units.
  These correct columns can be arranged in 6 different ways each giving 6x6x6= ☆☆☆ combinations x 5 solution sets = ☆☆☆ 0 possible.
• Logi, Ghana And Ireland And England
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• I found one which is ☆☆☆ + ☆☆☆ + ☆☆☆ lucky guess.
• , Vp
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• I quite liked this one.
• Mr. Keir, Welshpool
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• Very competitive in Welshpool High School. Year 7 set 2 loved it!
• Miss Smith, Cults Primary
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• Think we broke the record and managed to get 13 different solutions. GO US!

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