Question

Efetue as seguintes adições :

a) (+ 5|8) + (+ 1|2) + (− 2|15)

b)(+ 1|2) + (− 1|3) + (+ 1|5)

c)(− 1|2) + (− 4|10) + (+ 1|5)

d)(− 3|5) + (+ 2) + (− 1|3)

e) (+ 5) + (− 1|5) + (− 0,2)

f) (+ 0,1) + (− 1|5) + (− 2)

2 ) Efetue as subtrações
a) (+ 5|7) – (+ 2|3)

b) (+ 2|3) – (+ 1|2)

c) (+ 2|3) – (+ 4|5)

d) (− 2|5) – (− 1|4)

e ) (– 1|2) – (+ 5|8)

3) Efetue as multiplicações:
a) (1|4 .3|5) . 2|7

b)(2− 1|4) . (−2|3)

c) 4. (1− 7|5)

d) (−3|5) . (– 2 ) . (7|5)

e) (−3|4) .(+ 1|5) .(− 1|2)

4) Efetue as divisões:
a) 2|3 ∶ 3|16

b) (− 4|9) : (– 3)

c) 2|5 : (− 3|4)

d) (− 7|8)∶ 2|3

e) (− 4|5)∶ (− 3|5)

f) 0 : (− 4|7)

Answer 1

.................. Descupa