ajutati ma va rog sa calculez

1 mod:
25•87+25•92=
=2175+2300
=4475
2 mod(dăm factor comun):
25•87+25•92=
=25•(87+92)
=25•179
=4475

1 mod:
110•93-110•64=
=10230-7040
=3190
2 mod(dăm factor comun):
110•93-110•64
=110•(93-64)
=110•29
=3190

1 mod:
39•76+39•128=
=2964+4992
=7956
2 mod(dăm factor comun):
39•76+39•128=
=39•(76+128)
=39•204
=7956

1 mod:
75•208-75•128=
=15600-9600
=6000
2 mod(dăm factor comun):
75•208-75•128=
=75•(208-128)
=75•80
=6000

1 mod:
324•15+324•25=
=4860+8100
=12960
2 mod(dăm factor comun):
324•15+324•25=
=324•(15+25)
=324•40
=12960

1 mod:
57•120-57•45=
=6840-2565
=4275
2 mod(dăm factor comun):
57•120-57•45=
=57•(120-45)
=57•75
=4275

Coroniță?

a)25×87+25×95=4550

25×2+95+87=4550

b)110×93-110×64=3190

110×93-64=3190

c)39×76+39×128=7956

39×2+76+128=7956

d)75×208-75×128=6000

75×2-208-128=6000

e)324×15+324×25=12960

324×2+15+25=12960

f)57×20-57×47=1539

57×2-20-57=1539

Sper că te-am ajutat!