L0 Pre Req 1

Matemática do Ensino Fundamental – FATEC – 2S_2015 – Pré Req L0A

Aluno:................................................................................................................................ RA:..........................

1. Efetuar as operações indicadas e simplificar o resultado.

a) 5 – 7 = –2 + 5 = 0 – 3 = –2 – 3 = –3 + 1 =

b) –5 –5 = –3 + 3 = 7– (–9)= –5+(–3)= – (–3) – (–5)=

c) 3 – 5 + 4 = –2 +5 –3 = 7 – 4 – 5 = –5 –3 +4 = 7 – 3 + 3 – 8 =

d) –4 + 4 – 3 = 2– (–3)+1= – (–4+7– (–1))= –2+(–3)+( –4)= – (–7) – (–3)+5=

e) 7 – (3 + 9) = –2 + (–3 + 5) = (3 – 5) – (5 – 3) = –3 – (–2 + 5 – (4 – 7) + 2) =

f) –3 . 2 = 5 . (–2) = –3 . 0 = –2 . (–3) = –5 . (–5) . 0 =

g) (–1) . 3 . (–1) = (–3).( –4)= 3.( –2).( –1)= – (–2).( –3).( –5)= –2.( –1).( –1)=

h) 3 . (0 – 3) = –2 . (5 – 1) = –3 . (3 – 5) = –2 + 3 . 2 – 1 = 2 + 3 . 2 =

i) –2 – 3 . (–1) = – (4–7).(3–4)= (–3).(2–4)= (5– (–2)).( –2)= –3– (5–2).( –4)=

j) 3 . (3 – 4 . 1) = (3 – 5) . (5 – 3) = – (5 + (–2)) . (–3 – 2) = (–1) . (–2) – (–3).(–1) =

k) 32 – 3 = –32 + 3 = (–1)2 – 22 = (3 – 2)5 = –3 –15 =

l) (2 – 3)3 = (–1)4 = 24–32– (–3)2 = ((–2) -1)2 = 23–22.( –3)=

m) 23 + 23 = 23 – 32 = 23 . 22 = –22 . 23 = 3-4 . 35 =

n) (3-2 . 3)-2 = ((–2)-2)-1 = (2– (–3)2)2 = (23–5).( –3)2 = (–1+3+(–1)2)2 =

o) 32 . (4 – 7) = 32 + 32 + 32 = (23 – 2) . (23 + 2) = (1 – 32) . (1 + 32).( –1)+3 =

p)

q)

r) s)

t)

2. Transformar em frações irredutíveis os seguintes números:
a) 0,35 b) 0,03 c) 1,24 d) 0,333... e) 4,4 f) 0,2727... g) 1,3636... h) 5,315315...

3. Quais os fatores primos dos seguintes números:
a) 21 b) 30 c) 18 d) 210 e) 154 f) 54 g) 150 h) 98 i) 180 j) 1260

4. Obter o resto das seguintes divisões.

a) b) c)