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 5

ecuación 12

Sistema de ecuaciones con dos variables

eduardo_flores_pavez

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ecuación 15

Razones y proporciones

eduardo_flores_pavez

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ecuación 16

Problemas de Enunciado

eduardo_flores_pavez

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ecuación 4

Planteo de ecuaciones usando modelo gráfico. Inducción.

eduardo_flores_pavez

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Ecuación 2

Problema de edades. Induciendo el planteo de ecuaciones.

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 10

Very easy.

Think harder with your answer.

siddiquetamim123

3

3

Rhind Papyrus - 27

Nice activity for maths' history, fractions and equations. The idea is read only the text... because the point is just think and write the equation.

sir_odracir

0

0

Rhind Papyrus - 26

Funny way to introduce maths' history and to look back to fractions and equations.

sir_odracir

0

0

Rhind Papyrus - 25

This is an old problem, which could be use to explain some maths' history, fractions and equations. The point is just think and write the equation. Solving is easy.

sir_odracir

0

0

Equations system

It was based on a Maths Olympics' exercise in my region. I have adapted for 12 years old kids.

sir_odracir

0

0

Equotions 1

Solve both equotions to use the results on final fractions' sum.

sir_odracir

0

0