Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 Level 9 Level 10 More Help

The numbers in the circles add up to the numbers
in the rectangles between them.

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Levels

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	◯ ◯ ◯	◯ ◯ ▭	◯ ▭ ▭	▭ ▭ ▭
1	Level 1	Level 2	Level 3	Level 4
5	Level 5	Level 6	Level 7	Level 8
9	Level 9	Level 10	Level 11	Level 12

	◯ ◯ ◯	◯ ◯ ▭	◯ ▭ ▭	▭ ▭ ▭
13	Level 13	Level 14	Level 15	Level 16
17	Level 17	Level 18	Level 19	Level 20
21	Level 21	Level 22	Level 23	Level 24

	◯ ◯ ◯	◯ ◯ ▭	◯ ▭ ▭	▭ ▭ ▭
25	Level 25	Level 26	Level 27	Level 28
29	Level 29	Level 30	Level 31	Level 32
33	Level 33	Level 34	Level 35	Level 36

	◯ ◯ ◯	◯ ◯ ▭	◯ ▭ ▭	▭ ▭ ▭
37	Level 37	Level 38	Level 39	Level 40
41	Level 41	Level 42	Level 43	Level 44
45	Level 45	Level 46	Level 47	Level 48

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Single digit numbers in circles Two digit numbers Decimals Positive and negative numbers Addition Multiplication Subtraction Given 3 circle values only 2 circle values and 1 rectangle value 1 circle value and 2 rectangle values 3 rectangle values only Confirm

Instructions

The first Arithmagon you will see is a triangle with three circles at its vertices and rectangles on its sides. The idea is to add up the two numbers in circles at either end of a side of a triangle and type the answer into the rectangle on the middle of that side.

Click the check button when you have filled in all three rectangles. If you are correct you will see one slice of a pie chart showing your progress so far. Complete eight Arithmagons to earn a Transum Trophy.

This first level you should find very easy. It gets more difficult when you are not given the three circle numbers but are given the rectangle numbers instead. That’s when you need to come up with a strategy!

You are currently working on Level 1: The basic arithmagon, three single digit numbers given in circles. The numbers in the rectangles are the sum of the two adjacent circle numbers.

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