Question

Urgent pentru 99 pct.

Calculeaza in mod convenabil.
a)43+389+57
c)5x20x6 e)8x(25+75)
g) (200+120):2
b)362+105+405
d)4x40x5 f) (9+50)x2
H)(344+56):4

Answer 1

a) (43+57)+389=100+389=489
c) (5*6)*20=30*20=600
g) (200/2)+(120/2)= 100+60=160
e) (8*25)+(8*75)=200+600=800
b) (105+405)+362= 510+362=872
H) (344/4)+(56/4)=86+14=100
d) (4*5)*40= 20*40=800
f) (9*2) +(50*2)= 18+100=118

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Answer 2

a) 389+100 = 489
c) 30x20 = 600
e) 8x100 = 800
g) 320:2 = 160
b) 362+510 = 872
d) 20x40 = 800
f) (9x2)+(50x2) = 18+100 = 118
h) (344:4)+(56:4) = 86+14 = 100