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Arithmetic Practice
This resource contains eight activities for use in the classroom.
Self descriptive numbers: 'Four' is a self descriptive number as the word four contains 4 letters. This is the only number for which this is the case. However if 22 is represented as 17+1+4 then this written in words takes 22 letters and is therefore self descriptive; and so the investigation begins.
Magic 30: Exploring ways of making 30 in 4 by 4 magic squares
Totalines: Placing numbers in circles to create the required total
Addagons: Exploring triangular and pentagonal addagons in which the numbers in two circles add to give the number in the square.
Multogons: As addogons except the number in the square is found by finding the product of the number in the two circles.
Arithmecuts: Numbers 1 to 16 are arranged randomly in a 4 by 4 grid. The task is to split the grid into parts such that the numbers in the two parts add to the same total.
Jumblies: Words have to be reordered to make sense mathematically.
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