### daily number puzzles posted in the previous 12 months: 2017/18

# Category Archives: 7puzzleblog.com

## DAY 144:

The Main Challenge Another mini-Mathelona challenge where you must place the eight digits 1, 1, 1, 2, 2, 3, 4 and 5 into the eight gaps so both lines work out arithmetically: ◯ + ◯ = 3 = … Continue reading

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## WELCOME

A warm Welsh ‘Croeso’ to 7puzzleblog.com and our compendium of daily number puzzles; posted 7 days a week and designed for our many followers from over 160 countries & territories throughout the world. This is also the place to learn about our exciting and … Continue reading

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## DAY 143:

The Main Challenge Start with the number 50, then: +27 –42 divide by 5 ×4 +50% two-thirds of this ÷7 = ? What is your final answer to this 7-step number trail? The 7puzzle Challenge … Continue reading

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## DAY 142:

The Main Challenge From the numbers 1-20, eliminate all: square numbers prime numbers triangular numbers multiples of 6 When adding together the numbers that remain, what is your total? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid containing … Continue reading

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## DAY 141:

The Main Challenge One of our easier Mathelona-style challenges, but still utilising the four arithmetic operations. Place the eight digits 1, 2, 2, 3, 4, 4, 5 and 6 into the gaps so both lines work out: ◯ + ◯ = … Continue reading

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## DAY 140:

Today’s Challenge Using the three digits 4, 6 and 9 once each, with + – × ÷ available, which are the only TWO numbers it is possible to make from the list below? 7 14 21 28 35 … Continue reading

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## DAY 139:

Today’s Challenge There are two sections below, both containing ten letters, A-J. Each letter is linked to a division calculation: Section 1 D:9÷3 H:8÷2 B:12÷3 I:8÷4 A:4÷2 E:24÷6 G:15÷5 C:20÷4 F:25÷5 J:7÷7 Section 2 I:6÷2 G:6÷3 D:10÷2 E:12÷4 J:14÷7 B:20÷5 A:18÷6 C:10÷5 … Continue reading

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## DAY 138:

Today’s Challenge The two sections below both contain ten letters, A-J; each of which has a multiplication calculation assigned to it: Section 1 C:10×2 J:4×3 F:8×5 D:3×3 I:3×2 G:7×4 B:5×4 H:9×4 E:10×3 A:6×4 Section 2 B:12×2 D:6×1 G:8×3 J:5×2 E:6×5 … Continue reading

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## DAY 137:

Today’s Challenge It is possible to use seven 5’s (5, 5, 5, 5, 5, 5 and 5) once each, with the four operations + – × ÷, to make all the target numbers from 1 to 5. For instance, to arrive … Continue reading

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## DAY 136:

Today’s Challenge Can you arrive at the target number 55 by using the five numbers 1, 2, 3, 4 and 5 exactly once each and with + – × ÷ available? The 7puzzle Challenge The playing board of the 7puzzle game is … Continue reading

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