Use all the strategies you have learnt to add multiples of 10, 100 and 1000. It is really useful to understand the relationship between addition and subtraction.
Adding two multiples of 100, with a number grid to help. Use this to practise reading larger numbers out loud.
Now we're adding multiples of 1000 together. Not as hard as it sounds!
Plenty of practice here for adding a multiple of ten (up to 90) to a 3-digit number.
Find the missing number that will make the total 1000. All the numbers are multiples of 50, and there is a number grid to help which makes it much easier!
A speed test with just one minute to answer as many questions as you can. Don't panic as the clock counts down!
There's something very fishy about this game as you make the totals up to the next whole thousand.
Use the information given to find the correct answer: no working out of an addition needs to be done here!
One addition facts gives you knowledge of two subtraction facts!
Sometimes an addition question can be done by multiplying. When trying this activity have a look at the Help button on the top right for more info.
Look for pairs that make ten when adding four small numbers. That frog just loves flies!
Adding three multiples of ten is very similar to adding three 1-digit numbers. remember, addition can be done in any order so look for easy pairs to add.
This really is quite tricky so don't expect a high score with this timed challenge. I'm quite pleased if I get 17 or more, and I'm pretty fast with addition!