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calculeaza aplicand proprietatile inmultirii: 8x4=4x...=... 6x13=...x...=... 6x5=...x6=... 5x9=...x...=...

Răspuns :

8x4=4x8=32
6x13=13x6=78
6x5=5x6=30
5x9=9x5=45
8x4=4x8=32
6x13=13x6=78
6x5=5x6=30
5x9=9x5=45