2kg si 3/4 kg sa se transforme in grame si 7 kg si 1/2 kg

Răspuns :

1kg=1000grame

a)

2kg+3/4kg=?grame

2×1000grame+1000:4×3grame=

=2000grame+250×3grame=

=2000grame+750grame=

=2750 grame

b)

7kg+1/2kg=?grame

7×1000grame+1000:2×1grame=

=7000grame+500×1grame=

=7000grame+500grame=

=7500grame