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

You may have seen tables' grids: these are addition grids and work in just the same way, adding rather than multiplying.

More practice at adding the nearest whole ten and adjusting, as well as looking at addition patterns.

Adding several numbers. A useful tip is to look for pairs of numbers that make 10 and do that part of the sum first.

Several ways to investigate the relationship between addition and subtraction.

Taking 15, 16, 17 or 18 from 2-digit numbers. The easiest way of doing this is by taking a whole ten and adjusting.

Finding the difference between two numbers as well as making subtraction number sentences from the numbers given.

Subtraction by decomposition is the way most adults are familiar with and is the way that children will ultimately use for larger numbers. Here is an introductory exploration of the idea.

A variety of written questions which need a good knowledge of 2x, 3x, 4x, 5x and 10x tables to answer quickly.

Our third set of tables squares. At this stage we are just looking at 2x, 3x, 4x, 5x, 6x and 10x tables, so not too bad!

A great way to show how multiplication works is by using arrays. 3 rows of 4 means 3 lots of 4. This means 4 x 3 or 3 x 4.

Multiplying whole tens by 2, 3, 4, 5 and 10. Excellent for putting knowledge of tables into practice.

Word questions which are all about dividing money. Some involve dividing odd numbers of pounds, without a remainder. (Split the remaining pounds into pence.)