Question

cire.
8. Calculați:
a) 23+{137 +[3 152–(248+594)–11]};
b) (37+49) +[149 +(345+17+1 431)];
c) (345 – 78) +[3 479+(1 078–839+17)];
d) [(3 749–885)+(1 793 +48) +29] +1 458 – 735; otob
e) [(3 458–179) +(3 845 –1 149)+36]+385–118; to die
A) 29+(384–18+[32+(1 449–83) +17]};
g) 35+{489+17+[178+(1 943 – 856) – 88]};
olge
Caco TOP
+

Answer 1

a) 23+{137 +[3 152–(248+594)–11]}

= 23+[137+(3 152-842-11)]

= 23+(137+2 321)

=23+2 458

=2481

b) (37+49) +[149 +(345+17+1 431)]

= 86 +(149+1 793)

=86+ 1 942

=2 028

c)

=267+( 3 479+ 256)

=267+3 735

=4 002

d)

=(4 643 +1 841+ 29) + 723

=6 513+ 723

=7 236

e)

=(3 279 +2 696 + 36) + 267

=6 011+267

=6 278

f)

=29+ [366+ (32+1 366+17)]

=29+ (366+ 1 415)

=29+ 1 781

=1 810

g)

=35+[489+17+(178+1 087-88)]

=35+(489+17+1 177)

=35+1 684

=1 718