Question

calculati: 5% din 400;25% din 1600;45% din 1800;35% din 144;80% din 30;144% din 35.

Answer 1

Si dupa tot asa
$\frac{5}{100} \times \frac{400}{1} = \frac{2000}{100} = 20$

Answer 2

400x5%=400x5/100=2000/100=20

1600x25%=1600x25/100=40000/100=400

1800x45%=1800x45/100=81000/100=810

144x35%= 144x35/100=5040/100=50.4

30x80%=30x80/100=2400/100=24

35x144%=35x144/100=5040/100=50.4

sper sa fie bine