Question

10. Calculează, efectuând mai întâi exercițiile din paranteze.
a) 3 x (4 : 2) =
b) (3 x 4) : 2 =
c) 5 x (4 + 7) =
d) (5 x 4) + (5 x 7) =
e) 7 x (6-3) =
f) (7 x 6) – (7 x 3) =
g) (35 + 12) + 6:3 =
h) 38+ (12 + 40 : 8) =
1) (99 – 35) + 24 + 6 x 6 =
j) 27 + 27 : 9+ (20:4:5 + 12) =
k) 28 + (7 x 6-24 : 6) + 14 =
1) 33-3+ (16:4:2 x 9 + 11) =
m) 25+ (11+ 7 x 7) + (25 - 3 x 6)
n) 56:7:2+ (40:5:4:2+3) =
​

Answer 1

Răspuns:

a)3×(4:2)=3×2=6

b)(3×4):2=12:2=6

c)5×(4+7)=5×11=55

d)(5×4)+(5×7)=20+35=55

e)7×(6-3)=7×3=21

f)(7×6)-(7×3)=42-21=21

g) (35+12) + 6:3= 47+6:3=47+2=49

h)38+(12+40:8)=38+(12+5)=38+17=55

1)(99-35)+24+6×6= 64+24+6×6=64+24+36=88+36=124

j)27+27:9+(20:4:5+12)=27+27:9+(5:5+12)=27+27:9+(1+12)=27+27:9+13=27+3+13=30+13=43

k)28+(7×6-24:6)+14=28+(42-24:6)+14=28+(42-4)+14=28+38+14=66+14=80

1)33-3+(16:4:2×9+11)=33-3+(4:2×9+11)=33-3+(2×9+11)=33-3+(18+11)=33-3+29=30+29=59

m)25+(11+7×7)+(25-3×6)=25+(11+49)+(25-3×6)=25+60+(25-3×6)=25+60+(22×6)=25+60+132=85+132=217

n)56:7:2+(40:5:4:2+3)=56:7:2+(8:4:2+3)=56:7:2+(2:2+3)=56:7:2+(1+3)=56:7:2+4=8:2+4=4+4=8

Explicație pas cu pas:

Sper că te-am ajutat!

Answer 2

a) 6
b)6
C)55
D)55
E)21
F)21
G)49
H)55
I)124
J)43
K)80
1)59
M)217
N)8