Note this is an American video- in the UK the middle of the circle is spelt CENTRE. Do sing along!
Here’s a great activity from Transum to help you round correctly either to significant figures or decimal places.
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This quiz starts with entry level questions but to win a million you need to be able to solve equations and be an expert at 3d shapes! Who wants to be a mathionaire?
The Tower of Hanoi is one of the most famous mathematical puzzles. See if you can work out how to do it with 3, 4, 5, 6 and 7 discs. Then see if you can do it using the minimum number of moves.
Here’s some timetable problems. I like the use of the time-line to show students how to calculate the answer.
Try these quizzes from Mathsframe.
Try this exercise. Don’t forget to set your sums out carefully by lining up the decimal points.