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Logic28

Por Susan Chen

Abre iTunes para comprar y descargar Apps.

Descripción

Logical Analysis can help us understand more about what happens around us. Logical Analysis can also help us master Math and Science. Logic28 is a game to practice Logical Analysis.

In each round, the player is given four positive integers less than 10. The goal is to use these 4 numbers to make an expression equal to 28. To do this, we can follow 3 basic steps. For example, consider the numbers 1, 2, 3, and 4.

Step 1: Determine the correct order of these four integers. 1, 2, 3, and 4 is the correct sequence.

Step 2: Insert one of four operators: +, -, *, and /, between each pair of integers in the sequence. For this example, we will insert +, *, and * to obtain 1 + 2 * 3 * 4.

Step 3: Determine the proper order of operations. Without any parentheses, 1 + 2 * 3 * 4 equals 25. To make the expression equal 28, we need to insert a pair of parentheses as follows: (1 + 2 * 3) * 4, so that the addition will be carried out before the second multiplication.

Let's try a second example using 1, 2, 7, and 9.

Step 1: Arrange the sequence as 9, 1, 2, and 7.

Step 2: Insert -, /, and * to obtain 9 - 1 / 2 * 7.

Step 3: Insert one pair of parentheses to obtain (9 - 1) / 2 * 7, which is equal to 28.

The complete list of all possible four-integer expressions that equal 28 is available on our web site.

Novedades de la versión 2.6

Implemented Leaderboards for the Game Center.

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Logic28
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  • Gratis
  • Categoría: Educación
  • Actualizado :
  • Versión: 2.6
  • Tamaño: 2.3 MB
  • Idioma: Inglés
  • Vendedor:

Compatibilidad: Requiere iOS 7.0 o posterior. Compatible con iPhone, iPad y iPod touch.

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