Question

Efectueaza tinanad cont de ordinea efectuarii operatilor
exercitiul 1 98-(7 x 3 +12 ) +5 x 3=
exercitiul 2 56+ ( 54 :9 x2 ) -6 x 7=
exercitiul 3 4 x( 24: 3 -4 )+ (64 : 8: 4+6) x 2

Answer 1

1)
98-(7x3+12)+5x3=
=98-(21+12)+15=
=98-33+15=
=65+15=
=80
2)
56+(54:9x2)-6x7=
=56+(6x2)-42=
=56+12-42=
=68-42=
=26
3)
4x(24:3-4)+(64:8:4+6)x2=
=4x(8-4)+(8:4+6)x2=
=4x4+(2+6)x2=
=16+8x2=
=16+16=
=32