calculează respectând ordinea operațiilor.;8×10-54:6-2×32=?102+63:7-54×2+45×5=?234×6+(45+5:5×20-15:5)-466=?101×100+2500:100-36×100=?(150:2):(75:5:3)+85=?125-30:10×9-60+2×0=?50+50:5×2-5×2=?1985+15×(1+45:15)=?
Răspunsuri la întrebare
8•10-54:6-2•32=
80-9-64=7
b)
102+63:7-54•2+45•5=
102+9-108+225=228
c)
234•6(45+5:5•20-15:5)-466=
234•6=1404
1•20=20
45+20=65
15:5=3
65-3=62
1404+62=1466
1466-466=1000
d)
101•100+2500:100-36•100=
101•100=10100
2500:100=25
10100+25=10125
36•100=3600
10125-3600=6525
e)
(150:2):(75:5:3)+85=
150:2=75
75:5=15
15:3=5
75:5=15
15+85=100
f)
125-30:10•9-60+2•0=
125-3•9-60+2•0=
125-27-60+0=38
g)
50+50:5•2-5•2=
50+10•2-5•2=
50+20-10=60
h)
1985+15•(1+45:15)=
1985+15•(1+3)=
1985+15•4=
1985+60=2045
8 × 10 - 54 : 6 - 2 × 23 = 80 - 9 - 46 = 71 - 46 = 25
____________________________________
102 + 63 : 7 - 54 × 2 + 45 × 5 = 228
= 102 + 9 - 108 + 225 =
= 111 - 108 + 225 =
= 3 + 225 =
= 228
__________
234 × 6 + ( 45 + 5 : 5 × 20 - 15 : 5 ) - 466 = 1 000
= 1 404 + ( 45 + 1 × 20 - 3 ) - 466 =
= 1 404 + ( 65 - 3 ) - 466 =
= 1 404 + 62 - 466 =
= 1 466 - 466 =
= 1 000
______________
101 × 100 + 2 500 : 100 - 36 × 100 =
= 10 100 + 25 - 3 600 =
= 10 125 - 3 600 =
= 6 525
______________
( 150 : 2 ) : ( 75 : 5 : 3 ) + 85 = 100
= 75 : ( 15 : 3 ) + 85 =
= 75 : 5 + 85 =
= 15 + 85 =
= 100
___________
125 - 30 : 10 × 9 - 60 + 2 × 0 = 38
= 125 - 3 × 9 - 60 + 0 =
= 125 - 27 - 60 =
= 98 - 60 =
= 38
__________
50 + 50 : 5 × 2 - 5 × 2 = 60
= 50 + 10 × 2 - 10 =
= 50 + 20 - 10 =
= 70 - 10 =
= 60
_______
1 985 + 15 × ( 1 + 45 : 15 ) = 2 045
= 1 985 + 15 × ( 1 + 3 ) =
= 1 985 + 15 × 4 =
= 1 985 + 60 =
= 2 045