2.5.40m =(5) m (40) cm

3. When 1 and half of 1 =(90) points.

4. When one sixth of a day =(4)

5. 1: 20 =(4/3)

6.3kg 20g = 3.02kg。

7.3 tons 70 kg =( 3.07) tons

8.2 5 square meters =( 280) square decimeter

9. 1.6 ha =( 16000) m2 =( 1) ha (6000) m2.

10.5 cubic decimeter 4 cubic centimeter = 5.004 cubic decimeter = 5004 cubic centimeter

1 1.3.5 days =(3) days (12)

12.500 points =(8) (20 points)

Who doesn't know how to send me a message?