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# Monthly Archives: February 2020

## DAY/DYDD/GIORNO/NAP 60:

The Main Challenge Read the information below to find each of these three different numbers: A is the only 2-digit square number that does not contain any odd digits B is the only 2-digit prime number with both its digits the same C … Continue reading

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## DAY/DYDD/GIORNO/NAP 59:

The Main Challenge Your starting number is 18 and your task is to arrive at the same final answer. There are ten arithmetical steps from beginning to end, each one involving a whole number, but the 9th (and penultimate) step … Continue reading

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## DAY/DYDD/GIORNO/NAP 58:

The Main Challenge Starting from 1, find the sum of the first SEVEN whole numbers that do not contain a 3, 5 or 7 as part of their number, nor are multiples of 3, 5 or 7. The 7puzzle Challenge The playing … Continue reading

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## DAY/DYDD/GIORNO/NAP 57:

The Main Challenge Place the 12 numbers 1 1 2 2 3 3 4 4 5 6 7 and 8 into the 12 gaps below so all three lines work out: ◯ + ◯ = 5 = … Continue reading

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## DAY/DYDD/GIORNO/NAP 56:

The Main Challenge Can you place the 12 numbers 0 1 2 2 3 3 4 6 6 7 9 and 9 into the 12 gaps below so that all three lines work out arithmetically? ◯ + ◯ = … Continue reading

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## DAY/DYDD/GIORNO/NAP 55:

The Main Challenge ‘Can You Pass A Simple Math Test?’ was published in the USA in an attempt to emphasise the importance of adult numeracy skills. It contains five multiple choice questions. Simply answer a, b, c or d each time: … Continue reading

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## DAY/DYDD/GIORNO/NAP 54:

The Main Challenge Solve this Octaplus puzzle by finding the values of the eight letters, A to H, from the given clues. Each letter contains a different whole number in the range 1-32: D minus B is an even number, a third of … Continue reading

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## DAY/DYDD/GIORNO/NAP 53:

The Main Challenge From the numbers below, eliminate all: square numbers, triangular numbers, multiples of 4 and factors of 70. 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 Which … Continue reading

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## DAY/DYDD/GIORNO/NAP 52:

The Main Challenge Find the sum of the only FIVE 2-digit numbers that are even, has its digits adding up to more than 10 and are not multiples of 3, 4 or 7. The 7puzzle Challenge The playing board of the 7puzzle … Continue reading

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## DAY/DYDD/GIORNO/NAP 51:

The Main Challenge Using each of the numbers 0.1, 0.5, 3 and 6 once each, and with the four arithmetical operations available, can you arrive at the target answer of 7 in two different ways? The 7puzzle Challenge The playing board of the 7puzzle … Continue reading

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