Mario's Early Years! Fun with Numbers

' Mario's Early Years! Fun with Numbers (known as Mario Teaches Sums' for the United Kingdom's IBM-PC release ) is an educational Mario game intended to teach numbers and basic geometry and sorting to children. It was released for the MS-DOS and SNES in September 1994, following Mario's Early Years! Fun with Letters and preceding Mario's Early Years! Preschool Fun.

The game takes place on a set of islands to which Mario and Princess Peach sail. The player can click one of the islands to enter, after which the player sees Luigi asleep. Once the player clicks him, various activities must be performed to learn.

Islands

 * Number World: The player attempts to find the numbers and click them to advance to the next level. This island is a series of city-related locations.
 * Counting World: The player attempts to click objects in Mario's Bedroom and Mario's Kitchen to learn to count.
 * Comparing World: The player attempts to find an object (i.e "find the medium-size swing" or "find some water") to learn about things to compare; this island features a park.
 * How Many World: The player attempts to click the item with a number to increase their ability to count i.e. "Find the 8 peanuts in the bag", or "Find the four whiskers". This island features a zoo.
 * Shape World: The player must click on a given shape when directed to do so.
 * Same and Different World: Given a set of items, the player must select the one that is least related to the others.
 * Sorting World: The player attempts to pick the item that is similar to something (i.e "Pick a triangle").
 * Sing Song World: A world where nursery rhymes/children songs are reenacted with the Mario cast. They are the aforementioned Twinkle Twinkle Little Star,, The Alphabet song (A song recalling the letters of the English alphabet to the tune of Twinkle, Twinkle, Little Star) and.

Console differences
The SNES version of the game is generally the same as the PC edition, but with some differences due to reduced space.


 * Options to turn off music/sounds/voice clips, randomize the questions or show text in worlds that have it were removed.
 * The help screen with tips on how to continue learning outside of the program was removed.
 * Yoshi was added as a third playable character.
 * Various background graphic differences.
 * Like its predecessors, Sing Song World was removed.

Trivia

 * Piranha Plant, Goomba, Toad, Baby Yoshi, Bowser, Larry Koopa, and Ludwig von Koopa all have cameo appearances in this game.
 * All of the characters that pop up when the player answers correctly have relatively the same voice.