The Main Challenge
This is a problem-solving question from a typical Eleven Plus exam many years ago. Can today’s generation solve it?
Twice one hundred and sixty-eight added to four times another number gives a total of four hundred and eighty. What is the other number?
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.
The 4th & 7th columns contain the following fourteen numbers:
3 5 6 9 20 24 28 32 42 50 63 66 72 77
Which two numbers above, when multiplied by 7, have their answers appearing on the list?
The Factors Challenge
Which numbers below are factors of 346?
4 6 8 10 12 14 16 18 None of them
The Mathematically Possible Challenge
Using 1, 3 and 9 once each, with + – × ÷ available, which are the only TWO numbers it is possible to make from the list below?
5 10 15 20 25 30 35 40 45 50
#5TimesTable
The Target Challenge
Can you arrive at 346 by inserting 1, 2, 3, 4 and 5 into the gaps below?
- ◯³×◯–(◯+◯)²–◯² = 346
Answers can be found here.
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