Question

Calculeaza respectand ordinea efectuarii operatiilor.
a)7x8 +(87-79):4=
b)24+5x(25:5:5-1)+25=
c)3x2:6x[20+(54:9:2-1)[-20=
d)[(5x4+3x4): )9x8-8x8)] :4=




dau 66 puncte

Answer 1

Răspuns:

a)56+8:4=56+2=58

b)24+5·(1-1)+25=24+5·0+25=24+25=49

c)3·2:6[20+(6:2-1)]-20=1·(20+2)-20=22-20=2

d)[(5·4+3·4):(9·8-8·8)]:4=[(20+12):(72-64)]:4=32:8:4=4:4=1

Answer 2

Răspuns:

a)7×8+(87-79):4=

56+8:4=

56+2=58

b)24+5×(25:5:5-1)+25=

24+5×(5:5-1)+25=

24+5×(1-1)+25=

24+5×0+25=

24+0+25=

24+25=49

c)3×2:6×[20+(54:9:2-1)]-20=

6:6×[20+(6:2-1)]-20=

1×[20+(3-1)]-20=

1×(20+2)-20=

1×22-20=

22-20=2

d)[(5×4+3×4):(9×8-8×8)]:4=

[(20+12):(72-64)]:4=

(32:8):4=

4:4=1

sper că te-am ajutat!