Question

Tính:  

a) 11 – 1 – 3                      b) 11 – 1 – 5

c) 11 – 1 – 6                      d) 11 – 1 – 8   

Answer 1

a) 11 – 1 – 3 = 10 – 3 = 7.

b) 11 – 1 – 5  = 10 – 5 = 5.

c) 11 – 1 – 6 = 10 – 6 = 4.

d) 11 – 1 – 8 = 10 – 8 = 2.