I provide comprehensive worksheets to revise a particular topic (always with answers included) as well as extension materials, for pupils ranging from age about 11 to 16+. All of my premium resources have a UK and US version.

pptx, 1.36 MB
pptx, 1.36 MB

A set of three powerpoints with riddles on such as this:

Clock A is broken. It never moves.
Clock B loses 10 minutes an hour.

If both clock are right at the very start of 2021, how often are they each right in the whole year?

Provided with solutions at the bottom of each slide.

Creative Commons "Sharealike"

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