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Exam (elaborations)

Examen tipo matemáticas
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  • Course
  • Mathematics and science
  • Institution
  • ESO

Cuelgo mis apuntes de 4 ESO de un instituto de la Comunidad Valenciana. A mí me han ayudado a obtener muy buenas calificaciones durante este año. Todos estos apuntes están hechos por mí y son a ordenador (digital). Disponéis de la mayoría de asignaturas ¡¡Espero que os sirvan tanto como a m...

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Document information

  • September 3, 2024
  • 5
  • 2023/2024
  • Exam (elaborations)
  • Only questions

Subjects

  • examen
  • matemáticas

Written for

  • Secondary school
  • ESO
  • Mathematics and science
  • 4
All documents for this subject (135)

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PROVA DE EXAMEN 1

1) Digues el tipus de decimal que és segons les següents fraccions:
54 5 17 38
a) b) c) d)
26 105 50 230

2) Converteix aquests decimals en fracció:
a)7,175 →

b)1,983 →

c)3,484 →


3) Efectua les següents operacions
a)2 · (-3)3 · (-1)3
3




b)(-1)3 · (-1)8 · (-1)5

c) 8·43·32
28 · 16

d) (54 : 5-3) · 56

e) 30· (33)4·75
125 · 94

4) Fes les següents operacions amb notació científica:
a)4 ·103+ 2 ·104- 1,7 ·105- 3 ·103

b)3 ·104 x 4,5 ·102

c)2,3 ·10-5- 3,23 ·10-4+ 6 ·10-3

d)75·105: 3 ·107

5) Simplifica les següents radicals
a)-5 √ ❑ +7√ ❑+ √ ❑

b)3 √ ❑+5 √ ❑-7 √ ❑

c)5 √
4
32- 3 √ 102
4




d)√
3
1296

6) Executa les següents operacions combinades:

, [ () ]
4 2 5
: − −1 · 2
3 7 9



(
2 4 2
)( )
· − - 2+
5 3 6
1
5

2 4 2
( )
· − - 2+
5 3 6
1
5

1 7
( )
5 2
· +6 · +
3 4 6 3

7) He gastat les tres quartes parts dels meus diners i em queden 900 euros.
Quant tenia?




3
8) Un venedor despatxa al matí les parts de les taronges que tenia. A la tarda
4
4
ven de les que li quedaven. Si en acabar el dia encara li queden 100 kg de
5
taronges. Quants kg tenia?




2
9) D'un dipòsit que estava ple se n'han tret del total i després un cinquè del
3
total. Sabent que encara quedeu 400 litres, quina és la capacitat del dipòsit?

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