DAY 295:

Today’s Challenge

. . . is from Volume 1 of our MATHELONA pocket book. You have a limited amount of numbers to work with, so can you make all three lines work out arithmetically by replacing the 12 ◯’s with these numbers?

1      2      2      2      3      4      4      4      8      8      8      8

◯  +  ◯   =     5     =   ◯  –  ◯
◯  +  ◯   =    16    =   ◯  ×  ◯
◯  +  ◯   =     4     =   ◯  ÷  ◯

Full details of our popular number puzzle can be found by clicking MATHELONA.

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 2nd & 3rd rows contain the following fourteen numbers:

8    13    17    25    28    36    42    45    48    55    63    64    66    80

There are two numbers on the list that are consecutive. What is their sum?

Make 295 Challenge

Can you arrive at 295 by inserting 3, 3, 4, 5 and 6 into the gaps below?

(◯³÷◯–◯²–◯)×◯ = 295

Answers can be found here.

Click Paul Godding for details of online math tuition. Wherever you are in the world, please get in touch.

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