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Scrie numerele urmatoare sub forma unui produs in care un factor sa fie 10 sau 100:20;300;500;90;40;70;800;100;50;80;600;400

Răspuns :

20=10x2
300=100x3
500=5x100
90=9x10
40=10x4
70=7x10
800=100x8
100=10x10 sau 100x1
50=5x10
80=8x10
600=6x100
400=100x4
20 = 2x10
300= 3x100 (30x10)
500= 5x100 (50x10)
90= 9x10
40= 4x10
70=7x10
800= 8x100 (80x10)
100=10 x 10 (100x1)
50= 5x10
80= 8x10
600= 6x100 (60x10)
400= 4x100 (40x10)