Without using a calculator or paper can you think which of these two expressions has the largest value?
23 x 25
24^{2}
Put your left hand up if you think 23 x 25 is the largest.
Put your right hand up if you think 24^{2} is the largest.
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Topics: Starter  Mental Methods  Mixed
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Previous Day  This starter is for 29 November  Next Day
28^{2} is the largest.
There is a printable worksheet to go with this activity.
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Teacher, do your students have
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