1m= 100 cm
=> 1m -45 cm
= 100 cm- 45 cm
= 55 cm
1m = 100 cm
1m - 45 cm
= 1000 cm- 45 cm
= 55 cm
1m - 45 cm
Ta có : 1 m = 100 cm
Phép tính :
100 cm - 45 cm = 55 cm
Vậy : 1 m - 45 cm = 55 cm
1m - 45 cm
= 100 cm - 45 cm
= 55 cm
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1m=100cm
100cm - 45cm= 55cm
Vậy 1m -45cm= 55cm