Răspuns :
Răspuns:
309×81=309×9×9
63×144=144×9×7
781×40=781×5×8
48×163=163×6×8
309 × 81 = 309 × 9 × 9
63 × 144 = 7 × 9 × 144
781 × 40 = 781 × 5 × 8
48 × 163 = 8 × 6 × 163
Răspuns:
309×81=309×9×9
63×144=144×9×7
781×40=781×5×8
48×163=163×6×8
309 × 81 = 309 × 9 × 9
63 × 144 = 7 × 9 × 144
781 × 40 = 781 × 5 × 8
48 × 163 = 8 × 6 × 163