Question

buna.ma ajutati si pe mine la cateva exercitii la matematica?va rog frumos 1)(1000-38x5)x3-145x6= 8)6x(38x56-48x39)+230-5= 2)[6x(803-131x4)+79]x3= 3)(37x5-75x2)+145x5= 9)356+25x34-170x5+7= 4)900-(168x3+31x4)+21= 5)(600-45x4)x9-163x(3+5)= 10)[65x(900-875)-1248]x4 -42x21= 6)[3x(900-175x4)+25]x6= 7)25x6+(48x9-27x4)+15= VA MULTUMESC FRUMOS

Answer 1

1)(1000-38x5)x3-145x6=
(1000-190)x3-145x6=
810x3-870=
2430-870=1560

8)6x(38x56-48x39)+230-5=
6x(2128-1072)+230-5=
6x1056+230-5=
6336+230-5=6561

2)[6x(803-131x4)+79]x3=
[6x(803-524)+79]x3=
(6x279+79)x3=
(1674+79)x3=
1753x3=5259

3)(37x5-75x2)+145x5=
(185-150)+145x5=
35+725=760

9)356+25x34-170x5+7=
356+850-850+7=367

4)900-(168x3+31x4)+21=
900-(504+124)+21=
900-628+21=293

5)(600-45x4)x9-163x(3+5)=
(600-180)x9-163x8=
420x9-1304=
3780-1304=2476

10)[65x(900-875)-1248]x4-42x21=
(65x25-1248)x4-882=
(1625-1248)x4-882=
377x4-882=
1508-882=626

6)[3x(900-175x4)+25]x6=
[3x(900-700)+25]x6=
(3x200+25)x6=
(600+25)x6=
625x6=3750

7)25x6+(48x9-27x4)+15=
25x6+(432-108)+15=
25x6+324+15=
150+324+15=489