PRIMA PROBLEMA: (la mine. inseamna ori ca sa stii)
1. Cate grame au in total linguritele?
300g:4=75g
2. Cate grame au in total lingurile?
75g.3=225g
3. Cate grame cantareste o sigura lingurita?
75g:4=18.75g
4. Cate grame cantareste o singura lingura?
225g:2=112.5g
A DOUA PROBLEMA
1. Cate kg are o fata?
60kg:2=30kg
2. Cate kg au fetele in total?
30kg.4=120kg
3. Cate kg au baieti in total?
295kg-120kg=175kg
4. Cate kg are un baiat?
175kg:5=35kg
Te ajut cu ambele.
1) L=lingura
l=lingurita
2L+4l=300g
1L=3l
2*3 l+4 l=300g
10l=300g
l=300:10
l=30g
L=3*30
L=90g
Verificare: 2*90+4*30=180+120=300g
2) 5b+4f=295kg
2f=60kg
=> 4f= 2*60=120kg
=> 5b=295-120
5b=175
b=175:5
b=35kg
Daca ai vreo nelamurire, intreaba-ma.