DAY 220:

Today’s Challenge

The ten letters, A-J, in the following two sections each contains a calculation.  Which is the only letter that has the same answer in both sections?

  • Section 1

E:6÷6   I:5+1   G:3+2   A:102   J:4+3   C:5×1   F:6÷3   B:84   H:9÷3   D:4×2

  • Section 2

H:43   A:6÷1   I:3×3   B:61   F:64   J:8÷2   E:5×2   G:4×1   D:93   C:2+1

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 3rd & 4th rows of the playing board contain the following fourteen numbers:

3    10    13    25    32    35    36    42    44    45    54    60    66    80

What is the difference between the smallest and largest odd numbers?

Make 220 Challenge

Can you arrive at 220 by inserting 5, 8, 9 and 10 into the gaps below?

◯²+◯²+5×(◯+◯) = 220

Answers can be found here.

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

This entry was posted in Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *