Revision pages on adding to make multiples of 10 and subtraction of multiples of 10.
Revising adding and using the relationship between addition and subtraction.
Addition and subtraction of multiples of 100. Easy if you know the totals of pairs of single digits.
Knowing pairs of numbers that make 10 and being able to count in tens make these questions much quicker to answer.
Quick timed challenge adding three or more small numbers as quickly as possible.
Without doing any working out on paper answer these adding several numbers questions.
More practice at adding three 2-digit numbers (teen numbers only).
Work out the addition questions in your head and just write down the answers.
Mental addition with decimal fractions.
Mental addition and subtraction using decimals to make a total of 1 or 10.
Applying knowledge to add and subtract decimals mentally.
Adding tenths and hundredths. These are just like adding tens and units, but watch out for the decimal point!
Using a calculator to find totals; but it is always best to repeat the question in reverse order to check that it is correct.
Take particular care to line up the units when adding these numbers.
When adding decimals it is very important that the decimal points line up under each other.
Using the standard written method to efficiently add decimals.
A further look at adding two 3-digit numbers which are decimals.
Mini addition investigations. I especially like the one on page 3.
How many different ways can four squares be chosen that add up to 34. There are lots of them!
A quick look at what is expected in year 5 with addition and subtraction.