Question

Calculează respectând ordinea efectuari operatiilor. 285-28:4+9×5-150=
10×26-18×5+16:2=
1879+4×3:2-318×5=
347+869-405-5×18:9=
56:7×25+38×10×9-1786=
4505-15×34+70:7÷48=

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Answer 1

285 - 28 : 4 + 9 × 5 - 150 =

= 285 - 7 + 45 - 150 = 278 + 45 - 150 = 323 - 150 = 173

10 × 26 - 18 × 5 + 16 : 2 =

= 260 - 90 + 8 = 170 + 8 = 178

1879 + 4 × 3 : 2 - 318 × 5 =

= 1879 + 12 : 2 - 1590 = 1879 + 6 - 1590 = 1885 - 1590 = 295

347 + 869 - 405 - 5  × 18 : 9 =

= 347 + 869 - 405 - 90 : 9 =

= 347 + 869 - 405 - 10 = 1216 - 405 - 10 = 811 - 10 = 801

56 : 7 × 25 + 38 × 10 × 9 - 1786 =

= 8 × 25 + 380 × 9 - 1786 =

= 200 + 3420 - 1786 = 3620 - 1786 = 1834

4505 - 15 × 34 + 70 : 7 + 48 =

= 4505 - 510 + 10 + 48 = 3995 + 10 + 48 = 4005 + 48 = 4053