Question

calculeaza prin scăderea repetata a aceleiași numar cate cutii sunt necesare pentru a ambala 18 globulețe

Answer 1

18 globulete pot fi ambalate in mai multe moduri:

in cutii a cate 1 globulet=>18 cutii (18-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1=0)
intr-o singura cutie a 18 globulete =>18-18=0
in 3 cutii a cate 6 globulete fiecare => 18-6-6-6=0
in 6 cutii a cate 3 globulete fiecare =>18-3-3-3-3-3-3=0
in 2 cutii a cate 9 globulete fiecare =>18-9-9=0
in 9 cutii a cate 2 globulete fiecare => 18-2-2-2-2-2-2-2-2-2=0
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1*18=18
18*1=18
2*9=18
9*2=18
3*6=18
6*3=18