Question

Exprimă prin grame:a)1pe2 kg b)3 kg c)1 kg și 3pe4 kg d)2 kg si 1pe2 kg

Answer 1

1).0.5kg=500g
2).3kg=3000g
3). 1kg+3/4kg=1000g+750g=1750g(3/4= 3 sferturi, un sfert= 0.25 kg)
4). 2kg+1/2kg=2000g+500g=2500g

Answer 2

a) 1 supra 2 kg =(1*1000g):2=1000g:2=500g
b) 3kg=3*1000g=3000g
c) 1kg si 3 supra 4 kg =1*1000g+(3*1000g):4=1000g+3000g:4=
    =1000g+750g=1750g
d) 2 kg si 1 supra 2 kg=2*1000g+(1*1000g):2=2000g+1000g:2=
    =2000g+500g=2500g