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Reconocimiento de cifras significativas

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Reconocimiento de cifras significativas

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Ejercicios de cifras significativas

Created by

Maria Alejandra Macias Silva
Maria Alejandra Macias Silva
Ecuador

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Reconocimiento de cifras significativas
 

Reconocimiento de cifras significativasOnline version

Ejercicios de cifras significativas

by Maria Alejandra Macias Silva
1

¿Cuántas cifras significativas tiene 456?

2

¿Cuántas cifras significativas tiene 120.0?

3

¿Cuántas cifras significativas tiene 0.0300?

4

¿Cuántas cifras significativas tiene 5000 (sin punto decimal)?

5

¿Cuántas cifras significativas tiene 602?

6

¿Cuántas cifras significativas tiene 0.0405?

7

¿Cuántas cifras significativas tiene 123.00?

8

¿Cuántas cifras significativas tiene 9.100?

9

¿Cuántas cifras significativas tiene 40.0?

10

¿Cuántas cifras significativas tiene 0.00078?

Explicación

Las cifras significativas son todos los dígitos entre el primer dígito distinto de cero y el final, contando ceros entre ellos; 0.00456 tiene 3 sig figs (4,5,6).

El decimal 120.0 indica 4 cifras significativas (1,2,0,0).

Los ceros a la izquierda no cuentan; los ceros al final en presencia de un punto decimal cuentan. 0.0300 tiene 3 sig figs (3,0,0).

Sin decimal ni notación especial, 5000 se suele considerar 1 cifra significativa.

Los dígitos 6,0,2 son todos significativos; el cero entre nonceros cuenta.

0s iniciales no cuentan; 4,0,5 son las sig figs.

Todos los dígitos, incluyendo ceros finales tras la coma, son significativos.

Con decimal, los ceros finales son significativos: 9,1,0,0.

La presencia de decimal indica que los ceros finales son significativos.

Solo cuentan 7 y 8; ceros iniciales no son significativos.

 
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