Twenty three again?
Happy Birthday Ms Tayke!
Ms Tayke does not want anyone to know
how old she is. We think she is 559 but she often subtracts 23 from her age
to make her feel younger.
How many times can you subtract 23 from 559?
Time left four minutes.
No calculators allowed.
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Topics: Starter  Arithmetic
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Previous Day  This starter is for 18 May  Next Day
Pupil 1: "I subtracted 23 from 559 three hundred times ... but I got the answer 536 every time!"
Teacher: "That's correct, but everyone else in the class will have divided 559 by 23 and given the whole number part of the answer which is 24"
Pupil 2: "I think the answer is infinite as you can subtract 23 as many times as you like as long as you understand negative numbers!"
Teacher, do your students have
access to computers? 

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