Question

1.Efectuati:
a) 37+342-297
b)250-123-57
c)2413-875=89
d)245+123-45-23
e)4725-1296+139
f)7231-38+519
g)273-59+27-41
h)324-49+123
i)478-79+126.

Answer 1

a) 37+342-297=82 b) 250-123-57=70 c) 2413-875=1538 d) 245+123-45-23=300 e) 4725-1296+139=3568 f) 7231-38+519=7712 g) 273-59+26-41=200 h) 324-49+126= 398 i) 478-79+126=515

Answer 2

a)
37+342-297=
=379-297
=82
b)
250-123-57=
=127-57
=70
c)
2413-875+89=
=1538+89
=1627
d)
245+123-45-23=
=368-45-23
=323-23
=300
e)
4725-1296+139=
=3429+139
=3568
f)
7231-38+519=
=7193+519
=7712
g)
273-59+27-41=
=214+27-41
=241-41
=200
h)
324-49+123=
=275+123
=398
i)
478-79+126=
=429+126
=525
la pct. c) in loc de =89 , ce semn este sau asa este exercitiul?