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a fost răspuns

a) 50•(27+3)
b) 17•7+64•7+7•119
c)14•49+71•14
d)450•21+559•21-2100
e)736•17-236•17+200•17
daca ma puteti ajuta trebe calculat in doua moduri va multumesc

Răspuns :

Gandac
a)
50×(27+3)=
50×30=1500

50×27+50×3=
1350+150=1500

b)
17×7+64×7+7×119=
119+448+833=1400

7×(17+64+119)=
7×200=1400

c)
14×49+71×14=
686+994=1680

14×(49+71)=
14×120=1680

d)
450×21+559×21-2100=
9450+11739-2100=
21189-2100=19089

21×(450+559)-2100=
21×1009-2100=
21189-2100=19089

e)
736×17-236×17+200×17=
12512-4012+3400=
8500+3400=11900

17×(736-236+200)=
17×700=11900