What are some of the ways I can improve my mathematics mental skills?

What are some of the ways I can improve my mathematics mental skills?
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Answer :

answer:I didnt know that mathematics required metal skills. Good things to make sure you know easily is which two numbers match up to make 10 or 100 or 1000 etc. e.g. if you see a 3 you will automatically think 7 or if you see 45 you think 55 (good for giving change from notes) this then breaks up the change. e.g. if you get given a $20 note to pay for $5.98 then the $10 is a given then you only have to see the change from the $10, this makes it much easier for me to pair numbers together to give change. Also try putting maths such as times tables to songs maybe. My old teacher used to make us sing our times tables to silly tunes but I do still remember the songs today 15 years on.
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