DAY 177:

Today’s Challenge

If you enjoy this, click MATHELONA for further details of our number puzzles.

You must make all three lines work out arithmetically by replacing the 12 ◯’s below with the digits 0, 0, 1, 1, 2, 3, 3, 4, 5, 6, 6 and 7:

◯  +  ◯   =    7    =   ◯  –  ◯
◯  +  ◯   =    5    =   ◯  ×  ◯
◯  +  ◯   =    6    =   ◯  ÷  ◯

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 1st & 6th rows contain the following fourteen numbers:

2    5    9    12    14    15    18    20    22    33    40    49    56    72

Which two numbers have a difference of 21?

Make 177 Challenge

Can you arrive at 177 by inserting 1, 7, 9 and 11 into the gaps below?

◯×(◯+◯)+◯ = 177

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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