问题
填空题
23×42+26×40=______.
答案
23×42+26×40
=23×(40+2)+(20+6)×40,
=23×40+23×2+20×40+40×6,
=920+46+800+240,
=966+800+240,
=1766+240,
=2006.
故答案为:2006.
23×42+26×40=______.
23×42+26×40
=23×(40+2)+(20+6)×40,
=23×40+23×2+20×40+40×6,
=920+46+800+240,
=966+800+240,
=1766+240,
=2006.
故答案为:2006.