Hi 3MonthMaid:
It's a bit difficult to give advice without understanding what year your DD is in.
If this is Class R - she's obviously doing very well - and probably you can continue as you are.
If this is Class 1 - she's on track - but you might want to think through games (card games/ board games) or on-line games that will reinforce maths skills and provide practice (because that's where the real facility with adding/ subtracting/ multiplying/ dividing comes from).
If this is Class 2 - then 1a is below the expected NC Level 2 (but only just below). This was where my DD1 was the end of Y2. We knew there were problems - she couldn't take 1 from 10.
Our solutions: we knew DD1 wasn't 'getting it' and needed both practice but clear explanation so we joined her up on an on-line maths tutorial. There are many out there now and my advice is to have a look at the websites and really think through what it is you feel your DD needs.
We joined mathsfactor: www.themathsfactor.com/ - there are summer camps already on now which you can do at home as and when for a one-off fee or you can just go ahead and sign up (paying monthly). We found the slow & steady pace suited our DD but others have complained it's too slow/ repetitive - it really does depend on the child.
Others have recommended:
Komodo Maths: komodomath.com/
Maths Whiz: www.whizz.com/
Mathletics: www.mathletics.co.uk/
My advice would be to have a look at the websites - most have demonstrations/ free lessons to view/ etc... and I think they all offer free trials.
-------
GAMES:
BLACK JACK/ 21
It seems odd but playing blackjack (21) is brilliant for adding skills with numbers over 10. We play it open handed so that our DDs can see our cards and add with us. Once your DC gets good - you can have them do all the adding and advise on whether you risk picking another card to get 21.
RULES: Ace = 1, jack/ queen/ king = 10 and number cards are as advertised. Deal two cards to each player (face up) and put the pile of cards face down in the middle. Have each player add up their cards [later you can modify by asking DC to check your addition]. Then decide whether the pick a card or not to make your number closer to 21. Winner gets all cards & to spice it up you can play for sweets/ biscuits/ etc... The one with the most cards (after 30 minutes or at the end of the deck) wins.
SNAKES & LADDERS
You know the old classic - but move from counting on and spice it up by having them do the addition in their head - no counting up. So 14 + 4 = ????
You can work on subtractiong by playing the game backwards. Again start by counting back and then gradually have them do it in their head.
When that gets too easy - add a second dice & have them add/ subtract up to 12.
Also good for multiplication (1-6) for one dice & (7 - 12) for the other - you may need to play the game up and down the board (we settled on 3 times) - because the numbers can get very big (e.g. 12 x 12 = 144).
--------
Useful websites:
Oxford Owl (this is intended for Early years - so may be too young): www.oxfordowl.co.uk/Maths/
BBC Bitesize KS1 Maths: www.bbc.co.uk/bitesize/ks1/maths/
If your school belongs to Education City or My Maths and your child has a password these work over the summer - there are all sorts of games on either of those, which are really useful practice to help build skills & speed.
My favourite school website is the Woodland Junior School Maths Zone: resources.woodlands-junior.kent.sch.uk/maths/ - just search out what area you want to work on and then click - that links you to all sorts of on-line games to help with practice. You may need to try these out first - to establish if they're too hard, because you don't want them discouraged.
Mumsnet has a link to Mathschamp on their Learning Pages: these are video games for maths practice based on ages 5 - 7/ 7 - 9/ 9 - 11. My DDs really enjoy these: www.mathschamps.co.uk/#home
When you're ready for multiplication - Table Trees is a very gentle practice site: www.amblesideprimary.com/ambleweb/mentalmaths/tabletrees.html
---
Useful worksheet websites:
Primary resources Maths: Just click area and these usually are clearly labelled by KS1/ KS2 year: www.primaryresources.co.uk/maths/maths.htm
Math Drills: Hundreds of worksheets - just select the category & explore: www.math-drills.com/index2.shtml
Worksheet Works (this is still BETA or under design - but has some great stuff & you can control difficulty & number of problems whilst designing your individual worksheets): www.worksheetworks.com/math.html
-----
APPS
I fear DD1 missed the boat on a lot of this but there seems to be all sorts of useful apps popping up:
Some top tens include:
PC ADVISORS' List: www.pcadvisor.co.uk/features/software/3380559/best-maths-apps-for-children/
Common Sense Media (US website) - need to select for age here so look for age ranges at top of list: www.commonsensemedia.org/mobile-app-lists/math-apps-and-learning-tools-for-kids
Guardian/ Observer list (under education): www.guardian.co.uk/technology/2012/aug/04/50-best-apps-chidren-smartphones-tablets
but there are new ones nearly every day - so ask around, buy a magazine, etc...
HTH