Question

Vă rog repede plizzzzzz ambele ex.

Answer 1

30 dam + a = 1 km  = 100 dam 
100 dam - 30 dam = 70 dam 

1 hm - 25 m = 100 m - 25 m = 75 hm  = 7 500 m

4 m + .....m = 1 dam 
1 dam - 4 m = 10 m - 4 m = 6 m 

38 hm + .... dam = 5 000 m 
5 000 m - 38 hm = 50 hm - 38 hm = 12 hm = 120 dam 

......mm + 290 cm = 73 dm 
73 dm - 290 cm = 73 dm - 29 dm = 44 dm = 4 400 mm

450 cm + ... cm = 10 m 
10 m - 450 cm = 1 000 cm - 450 cm = 550 cm 

29 dm + ...dm = 10 m 
10 m - 29 dm = 100 dm - 29 dm = 71 dm 

3 200 mm + ....mm = 10 m 
10 m - 3 200 mm = 10 000 mm - 3 200 mm = 6 800 mm 

15 hm - ... dam = 600 m 
15 hm - 600 m = 15 hm - 6 hm = 9 hm = 90 dam 

....m - 42 dm = 580 cm 
580 cm + 42 dm = 58 dm + 42 dm = 100 dm = 10 m 

4) 
17 km + 6 hm = 170 hm + 6 hm = 176 hm = 17 600 m 

32 dam + 450 dm = 320 m + 45 m = 365 m 

580 cm + 13 m = 58 dm + 130 dm = 188 dm 

780 dam + 590 hm = 78 hm + 590 hm = 668 hm 

670 mm + 93 dm = 67 cm + 930 cm = 997 cm 

5 000 mm - 400 cm = 5 m - 4 m = 1 m 

600 dam - 20 hm = 6 km - 2 km = 4 km 

720 dm - 28 m = 72 m - 28 m = 44 m = 4 400 cm 

16 km - 300 m = 160 hm - 3 hm = 157 hm = 1 570 dam 

340 m - 700 cm = 340 m - 7 m = 333 m = 3 330 dm