Question

1 Tính

a) 5.(-20)

b) (-9).4

c) 150.(-4)

d) (-10).1

Answer 1

a) 5.(-20) = -100

b) (-9).4 = -36

c) 150.(-4) = - 420

d) (-10).1 = -10

Answer 2

a) 5.(-20)= -100

b) (-9).4= -36

c) 150.(-4)= - 420

d) ( -10).1= -10