发布网友
共1个回答
热心网友
(1)(1800-9)×(35+124)
=1791×159
=284769;
(2)1800-(9×35+124)
=1800-(315+124)
=1800-439
=1361;
(3)400×(9÷3)+46
=400×3+46
=1200+46
=1246.