DAY 348

Today’s Challenge

. . . is a number puzzle with the same concept as my FlagMath card game. The Addition, Subtraction, Multiplication and Division versions are all available to buy now.  Below is an example of a typical multiplication challenge.

Each of the nine letters, A-I, in the two sections below contains a multiplication calculation:

  • Section 1

E:9×4   H:6×5   G:8×2   A:6×4   D:10×2   I:4×3   F:5×2   B:8×3   C:7×5

  • Section 2

F:6×6   I:9×3   A:5×3   H:4×4   C:3×3   E:8×2   B:7×4   D:5×4   G:10×3

Which is the only letter to have the SAME answer in BOTH sections?


The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.

The 2nd & 3rd columns of the playing board contain the following fourteen numbers:

2     4     10     12     15     16     17     33     35     45     48     70     80     81

Find the square root of each of the square numbers listed above. What is their sum?



. . . can be found when clicking this.


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