KS2, Calculation

Calculator activity - addition and subtraction resource

This is a follow-up to our popular Calculator Activity-1.

While that original resource focused exclusively on Addition, this one helps children develop their understanding (and accuracy) when reading written numbers and calculating with both addition and subtraction.

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mental and oral number journeyThis is a great way to get children discussing the mental strategies they use when calculating.

The idea is that the children have to follow a series of instructions to arrive at an unknown number. The image on the left shows a chain of number operations. The starting point is 2, to which 4 is added (making 6), this is then multiplied by 2 (giving 12), divided by 6 (making 2) then, finally, 1 is added (to end with 3). Read more »

school mathematics and magicThis is a quick way to demonstrate some ‘mathemagical’ powers – it also serves a useful purpose in that it will give children an entertaining opportunity to make use of investigative/problem solving skills.

You show the children a set of ‘raffle tickets’ each of which features a small identification number and a main four-digit ‘raffle’ number. Ask a child to pick a ticket at random, to show it to the rest of the class and to tell you only the small identification number. Read more »

maths teachers - addition and place value bingo gameHere's another 'why didn't I think of that' moment - a stunning place-value and calculation activity (well, we think it's fairly stunning). I had nearly forgotten about it until we started looking through some old work files in the garage. Read more »

Maths calculator gameThis is a straightforward number chasing game for two children using a calculator. The game give children plenty of practice using a calculator and encourages them to solve multiplication and division problems mentally. Read more »

target number mathes game

To play the game, the boards should be cut out and laminated. Children then write on them with a whiteboard pen. The players also need a set of 0-9 digit cards between them. Read more »

mathematical magic tricks for teachersIn this simple mathematical trick you are able to tell the children the value of two secretly rolled dice. This works well with a group of children, but could also work well with the whole class.

Here's how it goes: Read more »