Question

a. +7-2-4+3+[+3-5+4+(-4-6+9-3)]
b. +2-6-7+2+[+1-3+2+(-5+3+7-8)]
c. +8-7-9+[-4+2-1+3+(-1+3-4+6)]
d. +17-24+34+[32-12-56+(-43-71+54-22)]
e. +32-81+41+[-56+39-17+(-43-24+71-25)]
f. +49-31-57+[-82+57+32+(-21+39-63+25)]
g. +65-43-35+[-89+35+12+(-22+15-59+23)]
h. +271-437+[-156+731+212+(-569+437+225)]
i. +832-549+[-456-279+213+(+543-617+336)]
j. +419-328+[-369-582+123+(-617+983+205)]

VA ROG URGENT!!!! VREAU REZOLVARILE DETALIATE. CINE TERMINA PRIMUL PANA LA ORA 4 DAU COROANA SI 5 STELE. VA ROG URGENT!!!​

Answer 1

Răspuns:

Explicație pas cu pas:

a.

+7-2-4+3+[+3-5+4+(-4-6+9-3)] = 2

= 1+3 + [-2+4+(-10+9-3)] =

= 4 + [+2+(-1-3)] =

= 4 + (2 - 4 ) =

= 4 + ( - 2) =

= 4 - 2 =

= 2

_________________________

b.

+2-6-7+2+[+1-3+2+(-5+3+7-8)] = - 12

= -4 -7+2+[-2+2+(-2+7-8)] =

= - 11+2+[0+( 5 -8)] =

= - 9 + ( 0 - 3 ) =

= - 9 - 3 =

= - 12

___________________________

c.

+8-7-9+[-4+2-1+3+(-1+3-4+6)] = - 4

= 1-9+[-2-1+3+(2 -4+6)]

= - 8+[- 3+3+(-2+6)]

= - 8 + ( 0 + 4) =

= - 8 + 4 =

= - 4

______________________________

d.

+17-24+34+[32-12-56+(-43-71+54-22)] = - 91

= - 7+34+[20-56+(- 114+54-22)] =

= 27+[- 36+(- 60 -22)] =

= 27 + ( - 36 - 82 ) =

= 27 - 118 =

= - 91

________________________________

e.

+32-81+41+[-56+39-17+(-43-24+71-25)] = - 63

= - 49+41+[- 17 -17+(-67+71-25)]

= - 8 +[- 34+( 4 -25)] =

= - 8 + ( - 34 - 21) =

= - 8 - 55 =

= - 63

_________________________________

f.

+49-31-57+[-82+57+32+(-21+39-63+25)] = - 52

= 18 -57+[-25+32+(+18 -63+25)] =

= - 39 +[+ 7 +( - 45+25)] =

= - 39 + ( 7 - 20) =

= - 39 - 13 =

= - 52

________________________________

g.

+65-43-35+[-89+35+12+(-22+15-59+23)] = - 98

= + 22 -35+[- 54 +12+(-7 -59+23)] =

= - 13 +[-42 +(-66+23)] =

= - 13 + ( - 42 - 43 ) =

= - 13 - 85 =

= - 98

______________________________________

h.

+271-437+[-156+731+212+(-569+437+225)] = + 714

= - 166+[575+212+(- 132+225)] =

= - 166+[787+( + 93)] =

= - 166 + ( 787+93) =

= - 166 + 880 =

= + 714

__________________________________

i.

+832-549+[-456-279+213+(+543-617+336)] = + 23

= + 283 +[- 735 +213+(- 74+336)] =

= + 283 + ( - 522 + 262 ) =

= + 283 - 260 =

= + 23

_________________________________________

j.

+419-328+[-369-582+123+(-617+983+205)] = - 166

= +91 +[- 951+123+(+366+205)] =

= + 91 + ( - 828 + 571) =

= + 91 - 257 =

= - 166