Question

Calculeaza :[(0:90+90:2)x(423:9+318:6)]:(1000:100x10).
49:7+[49+(48:3+36:9+7:7)]:10.
90+[(45-34)x(56:8-7)]:10+3x(56-8x6).
(0+124-124:4):[88:4+2X(44:4+22:2)-63].

Answer 1

45.
14.
108.
3,72.
Acestea sunt rezultatele

Answer 2

 Prima = (0:90+45)x(423:9+318:6):1000:100x10
=(0:90+45)x(47+318:6):1000:100x10
=(0:90+45)x(47+53):1000:100x10
=(0:90+45)x100x1 supra 1000 x 1 supra 100 x 10
=(0:90+45)x100x1x1x10 totul supra 1000x100
=1000(0:90+45) totul supra 100000
=0:90+45 totul supra 100
= 45 supra 100...
=0,45
A doua= 49:7+(49+16+36:9+7:7)+10
=49:7+(49+16+4+7:7):10
=49:7+(49+16+4+1):10
=49:7+70:10
=7+70:10
=7+7
=14
A treia= 90+11x(56:8-7):10+3x(56-8x6)
=90+11x(7-7):10+3x(56-8x6)
=90+11x0:10+3x(56-8x6)
=90+11x0:10+3x(56-48)
=90+11x0:10+3x8
=90+1.1+3x8
=90+1,1+24
=115,1
A patra= (0+123-31):[88:4+2x(44:4+22:2)-63]
=93:[88:4+2x(44:4+22:2)-63]
=93:[(88:4+2x(11:22:2)-63]
=93:[88:4+2x(11:11)-63]
=93:[88:4+2x22-63]
=93:[22+2x22-63]
=93:[22+44-63]
=93:3
=31
Sper ca am scris tot...si ca intelegi...=))