Question

alculaţi: 7 dm + 50 cm + 200 mm = ? dm 1 m - 70 cm + 280 mm = ? mm 1 dm + 80 cm - 789 mm = ? mm 20 mm + 68 cm - 6 dm = ? cm 100 cm - 964 mm + 24 cm = ? mm 72 dm - 450 mm + 249 cm = ? cm 1 m - 1 dm - 1 cm - 1 mm = ? mm 1 mm + 10 cm + 229 mm - 187 mm = ? mm





Am nevoie azi de el plsssss​

Answer 1

Răspuns:

Explicație pas cu pas:

7 dm + 50 cm + 200 mm = 7 dm+5 dm+2 dm=14 dm

1 m - 70 cm + 280 mm = 1000 mm-700 mm+280 mm=580 mm

1 dm + 80 cm - 789 mm = =100 mm+800 mm-789 mm= 111 mm

20 mm + 68 cm - 6 dm = 2 cm+68 cm-60 cm= 10 cm

100 cm - 964 mm + 24 cm = 1000 mm-964 mm+240 mm= 276 mm

72 dm - 450 mm + 249 cm = 720 cm- 45 cm+249 cm= 924 cm

1 m - 1 dm - 1 cm - 1 mm = 1000 mm-100 mm-10 mm-1 mm= 889 mm

1 mm+10 cm+229 mm-187 mm=1 mm+100 mm+229 mm-187 mm= 143 mm