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Add and subtract Snap game ideas?

(4 Posts)
sunglasses Wed 26-Sep-12 14:26:50

DD aged 7 (year 3) has a maths homework to make a Snap game for addition and subtraction sums up to 20. The answers must be on separate matching cards. Anyone any ideas how this would work best? Does each player have a mixture of "sums" and "answers" Or does one player have "sums and the other "answers" Should we have say 5 possible answers but different sum options to give that answer?? Bit confused to be honest. Thought this was pretty straightforward when I first looked at it. There is no way DD could figure out how to do this without lots of help either so I am cutting up cards ready to fill in when she gets in from school but I need a strategy to help her so any ideas welcome.

Jenny70 Wed 26-Sep-12 21:55:33

Are you not overthinking this?

I would make cards with the numbers 0 to 20 on them, about 5 of each number. Shuffle and deal cards equally between players. each places card in turn, if it adds to the previous card to make 20 you cry SNAP and get the pile...

For example, the cards placed may go
1,5,4,6,14 SNAP. 4,8,11,2,15,5 SNAP

We often play with a regular deck of cards SNAP+1, SNAP+2 - so same numbers don't snap, only ones that are one different (or 2) from the one below.

Seeing as it's an addition, subtraction - maybe you need to go higher than 20 (?to 30), such that 10,30 can be SNAPPED, as 30-10=20. I wouldn't get hung up on the order that the subtraction needed to happen, so a 30 then a 10 would be snap, as would a 10 and then a 30.

steppemum Wed 26-Sep-12 22:25:06

one set of cards sums to 20
other set answers
make sure they are 2 or 3 sums with same answer (7+3 and 5+5) and then 2 or 3 answer cards with that answer on

one player has sums, the other the answers


sunglasses Thu 27-Sep-12 12:12:33

Thank you ladies. I would have done what you suggested Jenny and just used numbers but the homework says sums on some cards and answers on other cards so wasn't trying to over think it just figure out how my 7 year old might have a chance of success at the game. I think steppe mum that your idea was kind of what I was thinking just have to make sure there are plenty of opportunities for 'SNAP' otherwise its a bit pointless.

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