DAY 232:

Today’s Challenge

Try the following MATHELONA challenge, taken from our pocket book of challenges.

Can you make all three lines work out arithmetically by replacing the 12 ◯’s below with the following 12 digits?

0     1     1     2     2     3     3     4     5     6     6     7

◯  +  ◯   =    6    =   ◯  –  ◯
◯  +  ◯   =    9    =   ◯  ×  ◯
◯  +  ◯   =    3    =   ◯  ÷  ◯

The 7puzzle Challenge

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

The 2nd & 4th rows of the playing board contain the following fourteen numbers:

3    8    10    17    28    32    35    44    48    54    55    60    63    64

From the list, how many multiples of 9 are there?

Make 232 Challenge

Can you arrive at 232 by inserting 4, 8, 12, 16 and 20 into the gaps below?

(◯×◯)–(◯×◯÷◯) = 232

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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