Răspuns :

a)5×(134579+53761)=

5×188340=

941700

b)2×(98+345)=

2×443=

886

c)4×(86+52)=

4×138=

552

d)6×(76+98)=

6×174

1044

e)7×(42+178)=

7×220=

1540