Recommendation for math books for KS1 high achiever

[PopGoesTheWeaz]

God, I hate writing this as it sounds like stealth boasting when I say it in my head but DS2 has just finished y1, top marks across the board despite never really trying too hard or showing much interest in doing well (as opposed to DS1 who also does well but it is clearly important to him and he is very diligent about doing and puts a lot of effort into homework and participating in class.)

Anyway, DS2 has started asking me to write out sheets of math problems for him to do or taking DS1s math homework book and working through it (DS1 is in Y3, so DS2 is looking at the simpler maths from the beginning of the year.)

I'd like to buy him a book for him to practice in so I can stop writing out things by hand. Any ideas for work books he can practice in where its not necessarily aimed at students who are struggling but more about extending what hes done in school. Or should I just get something for ages 7-8 rather than 6-7?

I just buy for year above and two years above for my child.

Or let him on Khan academy

If you go to waterstones or whsmith , there are loads to choose from.
Go to the shop and let him choose one.(Or two or ten!)

My DC2 is the same age and likes a Carol Vorderman 10 minutes a Day maths book with a little timer attached.
We have the age 7-9 one (actually bought for DC1), and I find it is really clearly laid out, so DC2 can do it with only very occasional support. There is also a Carol Vorderman series called "Maths made easy", which has beginner, intermediate and advanced workbooks, so that might be one to look at too. They are nice and colourful.
It has been brilliant for both DC actually, as they now like to take turns doing 10 minutes each, and see how many questions they can answer, whereas before DC1 refused to do it.

Not a work book, but nrich was recommended by DS1s teacher. More puzzles and lateral thinking rather than getting further ahead with the curriculum. Might be worth thinking puzzles and others maths related things rather than deeper mathematical knowledge.

Some of the 7+ assessment papers? But ditto taking him in waterstones or whsmith and letting him choose

Can you find him logic puzzles or similar to extend his thinking sideways rather than just going forward with the standard curriculum?

Or something else that doesn't get much of a look in such as

• prime numbers (detection, patterns etc)
• different bases (binary, hexadecimal)
• Venn diagrams

Agree lateral thinking can be good. DS adored the Bond non-verbal reasoning books (dyslexic so has trouble with reading instructions in normal puzzle books) but I was always a bit at him doing them in cafes etc because I looked like a pushy mum coaching for entrance exams.

Target Your Maths Year 3 is a good no frills textbook with loads of questions to work through