82x33+66x9,怎样简便计算

82x33+66x9,怎样简便计算
2025-04-07 15:48:45
推荐回答(2个)
回答1:

应该是
82x33+66x9

=82x33+33x9×2

=33×(82+18)
=33×100
=3300

回答2:

82x33+66x9
=82x33+2x33x9
=33x(82+18)
=33x100
=3300