Question

Compara:

Ajutor.ex 9 va rog.

Answer 1

a) 3m > 30dm
b)75cm>75mm
c)400km<40.000
d)48hm<4800

3x120m<4x97dm
1200+24>1000+28
69:3<200+30
16x4<1280:10

Answer 2

3 m = 3 dm 
75 cm  > 75 mm;  75 cm = 750 mm > 75 mm 
400 km  < 40 000 hm 
40 000 hm = 4 000 km 
400 km < 4 000 km 
----------------------------
48 hm > 4 800 dm 
48 hm = 48 000 dm 
48 000 dm > 4 800 dm 
-----------------------------
3 x 120 m  >   4 x 97 dm 
360 m = 3 600 dm 
4 x 97 dm = 388 dm 
3 600 dm > 388 dm 
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12 m + 24 m   >  10 m + 28 cm 
12 m + 24 m = 36 m = 3 600 cm 
10 m + 28 cm = 1 000 cm + 28 cm = 1 028 cm 
3 600 cm > 1 028 cm 
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69 cm : 3 = 23 cm = 230 mm
20 cm + 30 mm = 200 mm + 30 mm = 230 mm 
230 mm = 230 mm 
69 cm : 3 = 20 cm + 30 mm
-------------------------------------
16 dm x 4   <   1 280 dm : 10 
64 dm   <  128 dm