Question

a) 180 dam + 320 darn = ? m;
/ 1000 m -50 dam = ? darn;
6 x 250 dam = ? darn = ? hrn;
Mole
b) 4m +32 dm=? dm:
42 m- 30 dm=?m:
6x220 dm = ? dm = ? m
on man
c) 17 dm + 19 cm = ? cm;
415 dm-70 cm= ? dm;
80 mm:2=? mm=?cm.​

Answer 1

Explicație pas cu pas:

a)180 dam + 320 dam= 400 dam=40 m

400 dam= 40 m

1000 m =100 dam

100 dam – 50 dam= 50 dam

6×250 dam= 1500 dam=150 hm

b) 4 m = 40 dm

40 dm + 32 dm = 52 dm

30 dm = 3 m

42 m – 3 m = 39 m

6 × 220 dm = 1320 dm = 132 m

c) 17 dm = 170 cm

170 cm + 19 cm = 189 cm

70 cm = 7 dm

415 dm – 7 dm = 408 dm

80 mm : 2 = 40 mm = 4 cm