Ajutati-ma va rog ca nu stiu

f)-4•(+25)=-4•25=-100

g)-20-15+45=-35+45=10

h)-7+35-40=28-40=-12

i)-4•10+21=-40+21=-19

j)-20:(-10)-8=2-8=-6

k)6+25-31+8=0+8=8

l)+8•(-5)+40-5=0-5=-5

m)-4•(-12)+30:(-5)+12=54

-4•(-12)=48

30:(-5)=-6

48+(-6)=42

42+12=54

n)-61+31-25+8=-47

-61+31=-30

-30-25=-55

-55+8=-47

f) - 4 × ( + 25 ) = - 100

g) - 20 - 15 + 45 = - 35 + 45 = 10

h) - 7 + 35 - 40 = 28 - 40 = - 12

i) - 4 × 10 + 21 = - 40 + 21 = - 19

j) - 20 : ( - 10 ) - 8 = 2 - 8 = - 6

k) 6 + 25 - 31 + 8 = 31 - 31 + 8 = 0 + 8 = 8

l ) + 8 × ( - 5 ) + 40 - 5 = - 40 + 40 - 5 = 0 - 5 = - 5

m ) - 4 × ( - 12 ) + 30 : ( - 5 ) + 12 = + 48 - 6 + 12 = 42 + 12 = 54

n ) - 61 + 31 - 25 + 8 = - 30 - 25 + 8 = - 55 + 8 = - 47