Search Results For “add and subtract multiples of 10 and 100”

Remember the work with an abacus? Now is the time to add ten to numbers.

That gorilla still hasn't worked out how to use his yo-yo. But he does know how to add ten!

Taking each row in turn, colour two numbers which add up to 10.

Make the three sums add up correctly to 10p. Then try to make some sums of your own that equal 10p.

Missing numbers to fill in to make number sentences correct.

Addition of 2-digit numbers without crossing the tens boundary.

How many ways can you add 2 numbers to make 7?

How many different answers can you get?

Use a number line to help add these whole tens.

Fill in the missing numbers to make the number sentences correct. All to do with adding 3 numbers to make 10.

Some straightforward adding to hundreds. These give confidence with using larger numbers.

Multiplying by ten is easy if you know what you are doing; each digit moves one place to the left. Avoid saying ?add a nought?.