Question

Completeaza :
a) __ t - 250 kg = 7500 hg
b) 500 l - __ dal = 1hl
c) 900 mg - __cg = 7dg
d) 1.000 mg + __g = 1kg
e) __dm + __ cm = 1 dam

Answer 1

250kg=0.25 t
7500hg=750 kg=0.75 t
x t-0.25t=0.75t  ⇒ x t=0.75t+0.25t=1t

500l= 50 dal
1 hl= 10 dal
50 dal-x dal=10 dal ⇒ x dal=50 dal-10 dal=40 dal

900 mg=90 cg
7 dg =70 cg
90cg-x dg =70 dg ⇒ x dg =20 dg 

1000 mg=1 g
1 kg = 1000 g
1g+ x g =1000g ⇒ x g=1000g -1g =999g
 
1 dam=100 dm
1 dam =1000 cm
Enuntul se poate completa in mai multe feluri:

100 dm+ 0 cm=1 dam
0 dam+1000 cm=1 dam
70 dm+ 300 cm =1 dam
25 dm+ 750 cm =1dam