问题
解答题
|
答案
(1)36×4×5
=36×(4×5)
=36×20
=720;
(2)900-125×6
=900-750
=150;
(3)46×7+109
=322+109
=431;
(4)(23+367)×2
=390×2
=780;
(5)(120+180)×8
=300×8
=2400;
(6)(100-64)÷4
=36÷4
=9.
|
(1)36×4×5
=36×(4×5)
=36×20
=720;
(2)900-125×6
=900-750
=150;
(3)46×7+109
=322+109
=431;
(4)(23+367)×2
=390×2
=780;
(5)(120+180)×8
=300×8
=2400;
(6)(100-64)÷4
=36÷4
=9.