Question

6223×780 method
$6223 \times 780$
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Answer 1

Answer:

$6223 \times 780 \\ (6000 + 223)(700 + 80) \\ 6000 \times 700 + 6000 \times 80 + 223 \times 700 + 223 \times 80 \\ 4200000 + 480000 + 156100 + 17840 \\ 4680000 + 173940 \\ 4853940$