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# Author Archives: 7puzzle

## DAY 43:

Today’s Challenge Using the numbers 2, 4 and 6 once each, together with + – × ÷, find the SIX target numbers from the following list that are mathematically possible to make: 12 14 16 18 … Continue reading

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## DAY 42:

Today’s Challenge You’ve rolled the numbers 2, 4 and 6 with your three dice. Using these once each, with + – × ÷ available, find the THREE target numbers from 1-10 that it is not possible to make. Visit Roll3Dice.com and hashtags #Roll3Dice #LearnTogether #R3D for further … Continue reading

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## DAY 41:

Today’s Challenge . . . is all the way from Japan. Can you insert 1, 4, 6 and 8 into the four gaps on each line so all three answers equal 20? (◯–◯)×(◯–◯) = 20 (◯÷◯+◯)×◯ = 20 (◯+◯)×◯–◯ = 20 … Continue reading

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## DAY 40:

Today’s Challenge In each group below, use the four numbers once each, with + – × ÷ available: 3 3 3 3 4 4 4 4 5 5 5 5 6 6 … Continue reading

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## DAY 39:

Today’s Challenge By allocating each letter of the English alphabet a numerical value as follows, A=1 B=2 C=3 . . . Z=26, the value of the word CAT would be 24, which is calculated by doing 3+1+20. Following this rule, … Continue reading

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## DAY 38:

Today’s Challenge Allocate each letter of the English alphabet a numerical value as follows, A=1 B=2 C=3 . . . Z=26. For instance, the value of the word DOG is 26 and calculated by doing 4+15+7. Follow this rule to … Continue reading

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## DAY 37:

Today’s Challenge If you add 1+4, then to that answer add 9, then keep on adding consecutive square numbers to the previous total, what is the first answer you reach that is greater than 200? (Hint: Square numbers are 1×1=1, … Continue reading

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## DAY 36:

Today’s Challenge You’ve rolled the numbers 2, 3 and 4 with your three dice. Using these once each, with + – × ÷ available, find the lowest whole number it is not possible to make. Visit Roll3Dice.com and the hashtags #Roll3Dice #LearnTogether for further details. … Continue reading

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## DAY 35:

Today’s Challenge Try the following 20 steps in your head. Start with the number 12, then: ÷2 –1 ×5 –5 ×3 –6 ÷2 –3 ÷3 ×2 –10 … Continue reading

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## DAY 34:

Today’s Challenge Can you replace all 12 ◯’s in the Addition-only MATHELONA puzzle below? ◯ + ◯ = ◯ ◯ + ◯ = ◯ ◯ + ◯ = ◯ ◯ … Continue reading

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