70kg 3g = ...70,003..... kg  

 7200 m = .....7,2... km    

7000 dm2 = ...70..... m2

5m 7 cm = ..5,07....... m   

5km 7 m = .... 5,0007..... km      

5m2 7 dm2 = ....5,07.... m2

5 tấn 7 tạ = .....5,7.... tấn  

5,65 m = ....0,0565..... hm      

5m2 7 cm2 = ....5,00007.... m2

8,556 kg = ....0,008556..... tạ  

8,5 dm = ....0,85..... m      

8,5 cm2 = ...0,00085..... m2

0,5 tấn = ....500..... kg   

0,5 cm = ....0,05..... m      

0,5 m2 = ...50...... dm2

4/5 tạ = .......0,08.... tấn     

4/5 km = .....800......m      

4/5 m2 = ....80....dm2

70kg 3g = ...70,003..... kg  

 7200 m = .....7,2... km    

7000 dm2 = ...70..... m2

5m 7 cm = ..5,07....... m   

5km 7 m = .... 5,0007..... km      

5m2 7 dm2 = ....5,07.... m2

5 tấn 7 tạ = .....5,7.... tấn  

5,65 m = ....0,0565..... hm      

5m2 7 cm2 = ....5,00007.... m2

8,556 kg = ....0,008556..... tạ  

8,5 dm = ....0,85..... m      

8,5 cm2 = ...0,00085..... m2

0,5 tấn = ....500..... kg   

0,5 cm = ....0,05..... m      

0,5 m2 = ...50...... dm2

4/5 tạ = .......0,08.... tấn     

4/5 km = .....800......m      

4/5 m2 = ....80....dm2
Bài 2:
a, x+4,32=8,67
  x= 8,67-4,32
  x= 4,35
b, x-3,64=5,86
  x= 5,86+3,64
  x= 9,5
c, x*0,34= 1,19*1,02
 x= (1,19*1,02)/0,34
 x= 3,57
d, x-2,751=6,3*2,4
 x= (6,3*2,4)+2,751
x= 17,871
e, x-1,27=13,5/4,5
x= (13,5/4,5)+1,27
x= 62,02
g, x+18,7=50,5/2,5
 x= (50,5/2,5)-18,7
x= 1,5