Question

Dau coroana!!! Toate rezolvarile si nu direct rezultatul !!! Mersi!!!​

Answer 1

a) 5×(-1,5)= 5×(-15/10)= -15/2=7,5

b) -0,031×1000=-31

c) -0,6×20/3=-6/10 × 20/3 = -2/1×2/1= -4

d) -2,5×(-3/46) = -25/10 ×(-3/46) = -5/2×(-3/46) = 15/92

e) -0,25 ×3,6= - 25/100 × 36/10= -1/4×18/5= -18/20=-9/10

f) -1,25×0,4×(-0,2)= -125/100×4/10×(-2/10)= -5/4×(-8/100)= 2/20=1/10

g) 2intregi si 1/4 × (-16/27)= 9/4×(-16/27)=-4/3

h) -1,2 × (-5/6)×2,1×(-10/7)= -12/10×(-5/6)×21/10×(-10/7)= 2/2×(-3/1)= 2×(-3)=-6