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Cornel are 3 cutii a cate 36 de bile , iar Maria are 2 cutii a cate 28 bile .
Completati intrebarea problemei , in asa fel incat problema sa se rezolve prin exercitiile date .

a) 3 × 36 + 2 × 28 =
b) 3 × 36 - 2  × 28 =


Răspuns :

a) Cate bile au copiii impreuna??
b)Cu cate bile are in plus Cornel fata de Maria?

36:3=12
20:2=10
3x36=108
2x28=56
108+56=164
3x36=108
2x20=56
108-56=52