Question

6. Efectueaza : a) 340 ml + 18 cl + 9 l = cl b) 899 l - 9000 ml - 830 dl = l c) 980 cl - 8 l + 58 dl - 1200 ml = cl 7. Afla ce lipseste din fiecare operatie pentru ca egalitatile sa fie adevarate : 3 dl + dl = 1 l 40 cl + cl = 1 l 400 ml + ml = 1 l 95 cl + cl = 1 l 1 l = 60 cl + cl 1 l = 1 dl + dl 1 l = 455 ml + ml 1 l = 655 ml + ml

Answer 1

 a)  340 ml + 18 cl + 9 l = cl
= 34 cl  + 18 cl + 900 cl =
= 952 cl 

b) 899 l - 9000 ml - 830 dl = l
= 899 l - 9 l - 83 l =
= 890 l - 83 l =
= 807 litri 

c) 980 cl - 8 l + 58 dl - 1200 ml = cl
 = 980 cl - 800 cl - 120 cl =
= 180 cl - 120 cl =
= 60 cl 

3 dl + dl = 1 l
3 dl + dl = 10 dl 
10 dl - 3 dl = 7 dl 
3 dl + 7 dl = 10 dl = 1 l
_____________________


40 cl + cl = 1 l
1 l = 100 cl 
100 cl - 40 cl = 60 cl 
40 cl + 60 cl = 100 cl = 1 litru 
_______________________

400 ml + ml = 1 l
1 l = 1 000 ml 
1 000 ml - 400 ml = 600 ml 
400 ml + 600 ml = 1 000 ml = 1 litru 
__________________________

95 cl + cl = 1 l
1 l = 100 cl 
100 cl - 95 cl = 5 cl 
95 cl + 5 cl = 100 cl = 1 l
_____________________

1 l = 60 cl + cl
1 l = 100 cl 
100 cl - 60 cl = 40 cl 
1 l = 60 cl + 40 cl 
_________________

1 l = 1 dl + dl
1 l = 10 dl 
10 dl - 1 dl = 9 dl 
1 l = 10 dl = 1 dl + 9 dl 
__________________

1 l = 455 ml + ml
1 l = 1 000 ml 
1 000 ml - 455 ml = 545 ml
1 l = 1 000 ml = 455 ml + 545 ml 
_________________________

1 l = 655 ml + ml
1 l = 1 000 ml 
1 000 ml - 655 ml = 345 ml 
1 l = 1 000 ml = 655 ml + 345 ml