Question

3 chifle si 2 cornuri cantaresc 800 g,iar 3 cornuri si 6 chifle cantaresc 1500 de grame .Cu cat cantareste mai putin un corn decat o chifla

Answer 1

3chi...2co...800g |×2
6chi...3co...1500g
6chi...4co...1600g
6chi...3co...1500g
1co...100g
3chi...100×2...800
3chi...200co...800g
3chi...600 g
1chi...600:3
1chi...200g
200-100=100g

Answer 2

 3 chifle...........2cornuri...............800g  / x2
6chifle.............3cornuri...............1500g

6 chifle............4cornuri................1600g
6chifle.............3cornuri.................1500g
________________________________
/           .............1corn....................100g

6 chifle................3 x100g................1500g
6chifle................1500g- 300g
6chifle.................1200g
1chifla= 1200g : 6
1 chifla= 200g

Un corn cantareste cu  200g-100g=100g mai putin decat o chifla.