Question

tính nhanh : 

a, 23,56 + 56,77

b, 32,19 + 32 

c, 35,34 + 35,86 + 65,75 + 65,45

d, 43,17 + 29,57 + 13,43 + 57 

e, 3.25.8 + 4.37.6 + 2.38.12

f, 64,16 + 81,84 + 17,16

Answer 1

a, 23,56 + 56,77=80.3

b, 32,19 + 32 =64.2

c, 35,34 + 35,86 + 65,75 + 65,45=202.4

d, 43,17 + 29,57 + 13,43 + 57 =143.2

e, 3.25.8 + 4.37.6 + 2.38.12=2400

f, 64,16 + 81,84 + 17,16=163.2

Answer 2

Trả lời :

23,56 + 56,77 

= 80,3 

Hc tốt