Question

punctele 1 și 2


30 de puncte


repede va rog

Answer 1

1) a                                                                    
7 m = 70 dm                      9 dm = 90 cm                6 cm = 60 mm
15 m = 150 dm                 26 dm = 260 cm             15 cm = 150 mm
114 m = 1 140 dm           172 dm = 1 720 cm         180 cm = 1 800 mm 

b)
4 dam = 40 m              18 hm = 180 dam              7 km = 70 hm 
12 dam = 120 m           15 hm = 150 dam             32 km = 320 hm 


c)  2 m = 20 dm = 200 cm = 2 000 mm
8 dam = 80 m = 800 dm = 8 000 cm = 80 000 mm
9 hm = 90 dam = 900 m = 9 000 dm = 90 000 cm = 900 000 mm 
5 km = 50 hm = 500 dam = 5 000 m = 50 000 dm = 500 000 cm = 5 000 000 mm

d) 4 m = 400 cm               18 km = 1 800 dam 
8 hm = 800 m                    27 hm = 27 000 dm 
7 dam = 700 dm                32 dam = 32 000 cm 
9 km = 9 000 m                 64 m = 64 000 mm

e) 
5 dam 7 m = 57 m = 5 700 cm 
7 dam 2 m = 72 m = 7 200 cm 
6 km 7 hm 3 dam = 673 dam = 6 730 m 
4 hm 5 dam 8 m = 458 m = 4 580 dm 

2) 
8 hm + 7 dam + 15 m = ? m = ? cm 
= 800 m + 70 m + 15 m =
= 885 m =  88 500 cm 

243 km + 117 hm + 30 dam = ? dam = ? hm = ? mm
= 24 300 dam + 1 170 dam + 30 dam =
= 25 500 dam = 2 550 hm = 255 000 000 mm 

430 m + 90 m + 1 000 dm = ? m = ? dam 
= 520 m + 100 m =
= 620 m = 62 dam 

170 km - 350 hm = 1 700 hm - 350 hm = 1 350 hm = 135 km = 135 000 m 

483 km - 640 dam = 48 300 dam - 640 dam = 47 660 dam = 4 766 hm
= 476 600 m 

Answer 2

1)

a)

7 m = 70 dm

15 m = 150 dm

114 m = 1140 dm

9 dm = 90 cm

26 dm = 260 cm

172 dm = 1720 cm

6 cm = 60 mm

35 cm = 350 mm

180 cm = 1800 mm



b)

4 dam = 40 m

12 dam = 120 m

18 hm = 180 dam

15 hm = 150 dam

7 km = 70 hm

32 km = 320 hm


c)

2 m = 20 dm = 200 cm = 2000 mm

8 dam = 80 m = 800 dm = 8000 cm = 80000 mm

9 hm = 90 dam = 900 m = 9000 dm = 90000 cm = 900000 mm

5 km = 50 hm = 500 dam = 5000 m = 50000 dm = 500000 cm = 5000000 mm

d)

4 m = 400 cm

8 hm = 800 m

7 dam = 700 m

9 km = 9000 m

18 km = 1800 dam

27 km = 270000 dm

32 dam = 32000 cm

64 m = 64000 mm


e)

5 dam 7 m = 50 m + 7 m = 57 m →

5 dam × 10 = 50 m

7 m × 100 = 7000 cm

5 dam × 1000 = 5000 cm

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7 dam 2 m = 70 m + 2 m = 72 m→70000 mm + 2000 mm = 72000 mm

7 dam × 10 = 70 m

7 dam × 1000 = 7000 cm × 10 = 70000

2 m × 1000 = 2000 mm


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8 hm 3 dam = 80 dam + 3 dam = 83 dam →8000 + 300 = 8300

8 hm × 10 = 80 dam

8 hm × 1000 = 8000 dm

3 dam × 100 = 300 dm


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