Question

se dau numerele a=354×7-1030+64:2×8. b=48:6×9+14×99. c=621-5×8:2+11×27. calculeaza 5×a-2×b+4×c

Answer 1

a=2478-1030+256
2478+1286
3764
b=72+1386
b=1458
c=621-20+297
c=601+297
c=898
5×3764-2×1458+4×898
18820-2196+3592=
16624+3592
20216

Answer 2

a=354×7-1030+64:2×8
a=2478-1030+64:2x8
a=2478-1030+32x8
a=2478-1030+256
a=1448+256
a=1704

b=48:6×9+14×99
b=8x9+14x99
b=72+14x99
b=72+1386
b=1458

c=621-5×8:2+11×27
c=621-40:2+11x27
c=621-20+11x27
c=601+11x27
c=601+297
c=898

5×a-2×b+4×c=9196
5x1704-2x1458+4x898=9196
8520-2x1458+4x898=9196
8520-2916+4x898=9196
8520-2916+3592=9196
5604+3592=9196

Sper ca te-am ajutat !
Succes la scoala!