问题
解答题
脱式计算
|
答案
(1)306×3×4,
=918×4,
=3672;
(2)900-25×5,
=900-125,
=775;
(3)(620+180)×8,
=800×8,
=6400;
(4)72×5÷4,
=360÷4,
=90.
脱式计算
|
(1)306×3×4,
=918×4,
=3672;
(2)900-25×5,
=900-125,
=775;
(3)(620+180)×8,
=800×8,
=6400;
(4)72×5÷4,
=360÷4,
=90.