Question

1. Calculează:
a) 17 – (7 – 3);
c) 38 - (8 + 10);
e) 40 + (10 + 7);
g) 60 - (20 – 15);
i) 60 + (20 – 15);
k) 180 – [50 – (40 – 30)];
b) (17 – 7) – 3;
d) (38 - 8) + 10;
f) (40 + 10) + 7;
h) (60 - 20) – 15;=
j) (60 + 20) – 15;=
1) (180 – 50) – (40 – 30).
-

Answer 1

Răspuns:

a)17-4=13

c)38-18=20

e)40+17=57

g)60-5=55

i)60+5=65

k)180-[50-10]=

 =180-40=140

b)10-3=7

d)30+10=40

f)50+7=57

h)40-15=25

j)80-15=65

l(130-10=120

Explicație pas cu pas:

Answer 2

Răspuns:

a) = 17-4 = 13

b) = 10-3 = 7

c) = 38-18 = 20

d) = 30+10 = 40

e) = 40+17 = 57

f) = 50+7 = 57

g) = 60-5 = 55

h) = 40-15 = 25

i) = 60+5 = 65

j) = 80-15 = 65

k) = 180-(50-10) = 180-40 = 140

l) = 130-10 = 120

==EVERGREEN==