Follow this link for info about the review system. 1 = Terrible, 5 = Awesome!

Another of the games originally documented in glorious full color.

Graphics: 2 Sound: 2 Replay Value: 2 Notes: 1- or 2-player game; one of the few early releases with title screen music (The Electric Company theme music). Screen Shots

Just a simple math problem-solving game. It was kind of fun sometimes when I was a kid. Pretty lame now. Math Fun also underwent a ROM revision. According to the Intellivision Lives site, the original game had you enter answers in "pencil and paper" order, which seemed backwards, e.g. 4,1,enter for 14. After revision, you supplied answers in "natural" order, e.g. 1,4,enter for 14. I've only noticed the "pencil & paper" order in Learning Fun I by INTV and the Intellivision, Inc. copies of Math Fun.

A total of four The Electric Company Math Fun box variants have been documented.

Image	Vendor	Part Number	Year	Origin	Description
	Mattel Electronics	2613-0910	1979	U.S.A.	Plastic tray; part number on top not in white box; © Mattel, Inc. Hawthorne, CA on bottom; refers to Keyboard Component on cover
	Mattel Electronics	2613-0910-G1	1979	Hong Kong	Plastic tray; no part number on top; © Mattel, Inc. Hawthorne, CA on bottom
	Mattel Electronics	2613-0410	1979	Hong Kong	International Edition; no part number on top; © Mattel, Inc. Hawthorne, CA on bottom; slots on back for manual; slots inside for overlays
	Intellivision Inc.	2613	1979	U.S.A.	Standard Intellivision, Inc. box; also has Children's Television Workshop, Inc. copyright data

The allegedly older version of this ROM has you enter answers in "pencil and paper" order, while the later versions have you enter in "natural" order. I've personally only seen the pencil-n-paper order on the Learning Fun I cartridge and on the Intellivision, Inc. version in "modern" times.

I swear we had the backwards entry version when I was a kid, but sadly that cart no longer functions. It could also be that my parents exchanged it as defective as well. I do recall it was one of the five carts we got when we got the Inty for Christmas in 1980. (Let's see, those were Baseball, Football, Math Fun, Space Battle, and, of course, Poker & Blackjack.) I haven't checked the part numbers on the chips of my other copies to see if they're different. All I can say is that the white label version appears to have the 'backwards' entry ROM, but rev. G1 instructions - which are NOT correct for that ROM!

A total of eight The Electric Company Math Fun manual variants have been documented.

Image	Vendor	Part Number	Year	Origin	Description
	Mattel Electronics	2613-0920(A)	1979	U.S.A.	Full color; does NOT have backwards entry instructions—was there an earlier version that did, or was it a later version?
	Mattel Electronics	2613-0920(D)	1979	Hong Kong	Green monochrome artwork
Image not available.	Mattel Electronics	2613-0820	1979	Hong Kong	NEED CONFIRMATION; British English version (located in Australian Lifestyle Electronics copy); submitted by Hankster
	Mattel Electronics	2613-0820-G1	1979	Hong Kong	British English version; blue monochrome art
Image not available.	Mattel Electronics	PC-2613-0920	1979	U.S.A.	PlayCable version; green monochrome artwork; does NOT have backwards entry instructions printed in the manual, but DOES include a photocopied correction describing 'backwards' entry—does this mean that the backwards entry was the later version of the ROM?
	Intellivision Inc.	2613-0920-G1	None	U.S.A.	Staple along top edge
Image not available.	Intellivision Inc.	2613-0920-G1	None	U.S.A.	Accorian-style folding; submitted by Hankster
Image not available.	Digiplay	N/A	1979	Brazil	Mattel/Digiplay edition; © M.I. 1979 on back; submitted by Psycho Stormtrooper

Supplemental Materials

The following supplemental materials have been found for The Electric Company Math Fun.

Are there really SIX revisions? The original (not pictured, not sure if it exists) and revisions A-D and G1, which just had updates of the replacement overlay order form. The existence of the original (not an "A" version or later) is assumed, provided that the purported ROM change truly did happen when the Intellivision Lives site claims that it did. Interestingly, the two copies of the Intellivision, Inc. version of Math Fun that have passed through my hands both have the 'backwards' ROM, and have instructions based on rev. G1 of the manual. I've only seen revs. A, D, and G1, and all of these describe answer entry in the 'natural' order - i.e. 3,4,6 for 346 - NOT 6,4,3, which is what the 'backward' ROM requires of you. So, if anyone has a copy of the manual that describes 'backwards' entry (around p. 9 or so) - please send scans!

There were also some variations of the 'Running Man' and Mattel logo on the back cover.

A total of three The Electric Company Math Fun overlay variants have been documented.

Image	Vendor	Part Number	Year	Origin	Description
	mattel	2613-4289	1980	U.S.A.
	mattel	2613-4289	1979		Note the discrepancy in the copyright— special thanks to mcg423 for reporting this one
	intellivisioninc	2613-4289	None		Copyright removed; image courtesy of Hankster

A total of five The Electric Company Math Fun label variants have been documented.

Image	Vendor	Part Number	Year	Origin	Description
	Mattel Electronics	N/A	None		No origin; ™ lower left next to Electric Company logo
	Mattel Electronics	N/A	None	Hong Kong	Origin lower right; ™ lower left next to Electric Company logo
	Intellivision Inc.	N/A	1979	Singapore	Origin lower right; © I.I. 1979 to left of origin; ™ small, centered vertically on right edge; smaller label, rounded corners; also has © 1979 Childrens Television Workshop, Inc. upper left
	Intellivision Inc.	N/A	None		No origin, copyright or date info; larger label, square corners; large bold font for game title
Image not available.	Digiplay	N/A	None		No origin or copyright; green label; first line, in larger font, MATH FUN; second localized: (BRINCANDO COM A MATEMATICA); submitted by Psycho Stormtrooper

	The theme to The Electric Company blared when you reset the game. Unusual for the early games—and not really particularly well-done, honestly.
	Gorillas jogging by the riverbank, leaping over other animals. Erm.... OK. Edutainment still hasn't really caught on. Wonder why?

If you find new, contradictory, or other information you wish to share, please let me know!