20.Respectactand ordinea operatiilor, efectueaza:
a) 50 + 50 : 5 - 50 =?...
b) 25 + 25 : 5 + 25 =?...
c)49 : 7 + 25 x 10 - 17 x 11 =?...
d) 9 + (9 x 9 : 9 - 9) + 220 - 20 x 0 =?...
e) 12 x 10 x 4 - 15 x 6 + 173 x 9 =?...
f) 25 x (160 - 30 x 5) - 8 + (24 + 6 : 6) =?...
g) (120 - 9 x 10) : 5 + 124 x 9 - (70 - 81 : 9) =?...
h) (72 : 8 + 324) - (64 : 8 + 60 x 2) =?...
i) (124 x 9 + 364 x 7) x 0 + 503 x 3 =?...
Va rog ajutatima promit ca dau coroana la cel mai bun raspuns. )by: voinaioana1968(
Răspunsuri la întrebare
Răspuns:
a) 50 + 50 : 5 - 50 =50+10-50=10
b) 25 + 25 : 5 + 25 =25+5+25=55
c)49 : 7 + 25 x 10 - 17 x 11 =7+250-187=70
d) 9 + (9 x 9 : 9 - 9) + 220 - 20 x 0 =9+(81:9-9)+220-0=9+0+220-0=229
e) 12 x 10 x 4 - 15 x 6 + 173 x 9 =120·4-90+1557=480-90+1557=1947
f) 25 x (160 - 30 x 5) - 8 + (24 + 6 : 6) =25·(160-150)-8+(24+1)=
25·10-8+25=250-8+25=267
g) (120 - 9 x 10) : 5 + 124 x 9 - (70 - 81 : 9) =(120-90):5+1116-(70-9)=
30:5+1116-61=6+1116-61=1061
h) (72 : 8 + 324) - (64 : 8 + 60 x 2) =(9+324)-(8+120)=333-128=205
i) (124 x 9 + 364 x 7) x 0 + 503 x 3 =(1116+2548)·0+1509=0+1509=1509
Salut!
a) 50 + 50 : 5 - 50 =
= 50 + 10 - 50 =
= 60 - 50 =
= 10
b) 25 + 25 : 5 + 25 =
= 25 + 5 + 25 =
= 30 + 25 =
= 55
c)49 : 7 + 25 x 10 - 17 x 11 =
= 7 + 250 - 187 =
= 257 - 187 =
= 70
d) 9 + (9 x 9 : 9 - 9) + 220 - 20 x 0 =
= 9 + ( 81 : 9 - 9 ) + 220 - 0 =
= 9 + ( 9 - 9 ) + 220 =
= 9 + 0 + 220 =
= 229
e) 12 x 10 x 4 - 15 x 6 + 173 x 9 =
= 120 x 4 - 90 + 1557=
= 480 - 90 + 1557 =
= 390 + 1557 =
= 1947
f) 25 x (160 - 30 x 5) - 8 + (24 + 6 : 6) =
= 25 x ( 160 - 150 ) - 8 + ( 24 + 1 ) =
= 25 x 10 - 8 + 25 =
= 250 - 8 + 25 =
= 242 + 25 =
= 267
g) (120 - 9 x 10) : 5 + 124 x 9 - (70 - 81 : 9) =
= ( 120 - 90 ) : 5 + 116 - ( 70 - 9 ) =
= 30 : 5 + 116 - 61 =
= 6 + 116 - 61 =
= 122 - 61 =
= 61
h) (72 : 8 + 324) - (64 : 8 + 60 x 2) =
= ( 9 + 324 ) - ( 8 + 120 ) =
= 333 - 128 =
= 205
i) (124 x 9 + 364 x 7) x 0 + 503 x 3 =
= ( 1116 + 2548 ) x 0 + 1509 =
= 0 + 1509 =
= 1509