问题
解答题
脱式计算.
|
答案
(1)48÷8×12,
=6×12,
=72;
(2)(75+25)×4,
=75×4+25×4,
=300+100,
=400;
(3)25×4×6,
=100×6,
=600;
(4)170×3-500,
=510-500,
=10;
(5)28×5×2,
=140×2,
=280;
(6)789-26×3,
=789-78,
=711.
脱式计算.
|
(1)48÷8×12,
=6×12,
=72;
(2)(75+25)×4,
=75×4+25×4,
=300+100,
=400;
(3)25×4×6,
=100×6,
=600;
(4)170×3-500,
=510-500,
=10;
(5)28×5×2,
=140×2,
=280;
(6)789-26×3,
=789-78,
=711.