Đáp áGiải thích các bước giải:

7km 47 m =  7,047  km    

47 m = 0,047 km . Vậy 7km 47 m = 7+0,047=7,047 km

46dm=4m 6dm

4 m = 40 dm . Vậy 4m6dm=40+6=46dm . Thỏa mãn

 29m 34 cm = 2934  cm       

29= 2900 m . Vậy 29 m 34 cm = 2900+34=2934 cm

1372 cm = 13 m 72 cm

13 m = 1300 cm . Vậy 13 m 72 cm = 1300 + 72 = 1372 cm . Thỏa mãn 

1 cm 3mm = 13  mm 

1 cm = 10 mm . Vậy 1 cm 3 mm = 10 + 3 = 13 mm

4037m =  4 km 37 m

4 km = 4000 m . Vậy 4 km 37 m = 4000 + 37 = 4037 . Thỏa mãn

$@chienbinhkieuhanh$

$\text{7km 47m=...km}$

$\text{=7+0,047km}$

$\text{=7,047km}$

$\text{Vậy 7km 47m=7,047km}$

--------------------------------------

$\text{46dm=...m...dm}$

$\text{=4m+6dm}$

$\text{Vậy 46dm=4m 6dm}$

-------------------------------------

$\text{29m 34cm=...cm}$

$\text{=2900cm+34cm}$

$\text{=2934cm}$

$\text{Vậy 29m 34cm=2934 cm}$

---------------------------------------

$\text{1372cm=...m...cm}$

$\text{=13m+72cm}$

$\text{Vậy 1372cm=13m+72cm}$

------------------------------------

$\text{1cm3mm=...mm}$

$\text{=10mm+3mm}$

$\text{=13mm}$

$\text{Vậy 1cm3mm=13mm}$

--------------------------------------

$\text{4037m=...km...m}$

$\text{=4km+37m}$

$\text{Vậy 4037m=4km 37m}$