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Logical reasoning
This collection contains resources from the website 1001mathproblems.com by Sian Zelbo. The focus is on using logical reasoning in calculations, algebra and geometry.
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The horse puzzle
A diagram is shown with horses arranged in fields around a rectangle. There are four challenges to move the horses to fulfill given criteria. A worksheet is also included for students to record their answers.
The spilled juice problem
A sheet is shown containing six calculations that have been partially obscured by juice spilled on the sheet. The challenge is to work out what the calculations were, and their solutions.
The two mangoes problem
This problem provides a gentle introduction to simultaneous equations. Three bags of shopping are shown: two have prices and one does not. The challenge is to find out the price of the final bag of shopping.
Domino addition challenge
In this puzzle, an example is given of a column addition that can be made by using the pips on dominos to represent digits. The challenge is to find how many addition problems can be made using a full set of dominos. The sheet contains a full listing of a set of dominoes to help with keeping track of which have...