Bài làm
10000 - 47 x7 - 47 x 28
=47x(10000-28)-7
=47x9942-7
=467274-7
=467267
# Chúc banj học tốt #
\(10000-47\text{ x }7-47\text{ x }28\)
\(=10000-47\text{ x }\left(7+28\right)\)
\(=10000-47\text{ x }35\)
\(=10000-1645\)
\(=8355\)
10000 - 47 x 7 - 47 x 28
= 10000 - 47 x ( 7 + 28
= 10000 - 47 x 35
= 10000 - 1645
= 8355