Monthly Archives: April 2018

DAY 121:

Today’s Challenge Read the following facts below about a particular number:  I am a 2-digit number,  I am an even number,  When my two digits are added together they make another 2-digit even number that is also a square number. What … Continue reading

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DAY 120:

Today’s Challenge Your task is to make the target number of 10 by adding together five numbers. You are limited to using 1 to 5, but these can be used any number of times in each sum. One way to … Continue reading

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DAY 119:

Today’s Challenge Using the numbers 3, 6 and 6 just once each, and with + – × ÷ available, which three of the following target numbers are NOT mathematically possible to achieve? 1    2    3    4    6    … Continue reading

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DAY 118:

Today’s Challenge A traditional clock was numbered √1, √4, √9 . . . √144 around its circumference. Every digit is represented on the clock, except one:  What is this missing digit?  Which is the first square number to contain this missing digit?  If … Continue reading

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DAY 117:

Today’s Challenge Can you place the 12 numbers 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 8 and 10 into the 12 gaps below so all four lines work out arithmetically? ◯   +   ◯   = … Continue reading

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DAY 116:

Today’s Challenge All of the following 3-digit numbers are divisible by 3, but only one is a also a multiple of 9. Which one is it? 237  276  303  336  495  528  582  660  744  771  888  939 [Note: Get … Continue reading

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DAY 115:

Today’s Challenge Start with the number 6, then: +2   ÷4   +1   ×4   –1   ×5   –16   ×2   –19   +1 ÷10   +7   ×4   –16   ÷3   –1   ×5   –8   ×2   +7   =   ? What is the final answer to this 20-step number trail? … Continue reading

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DAY 114:

Today’s Challenge Can you place the numbers 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12 and 13 into the 12 gaps below so all four lines work out arithmetically? ◯   +   ◯   =   … Continue reading

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DAY 113:

Today’s Challenge Here is a unique 7-part question. Answer all seven parts:  (4 + 3) + (2 – 1)  =  ?  (4 × 3) ÷ (1 × 1)  =  ?  (4 – 3) × (2 ÷ 1)  =  ?  (3 + 3) ÷ (2 × 1)  =  ? … Continue reading

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DAY 112:

Today’s Challenge If you multiply a mystery number by 6 and then subtract 6, the result is the same as if you first multiplied the same mystery number by 3 and then added 3. Is the value of this mystery number 1, 2, … Continue reading

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