问题
解答题
用你喜欢的方法计算.
|
答案
(1)25×125×4,
=25×4×125,
=100×125,
=12500;
(2)(105×12-635)÷25,
=(1260-635)÷25,
=625÷25,
=25;
(3)38×101,
=38×(100+1),
=38×100+38×1,
=3800+38,
=3838.
用你喜欢的方法计算.
|
(1)25×125×4,
=25×4×125,
=100×125,
=12500;
(2)(105×12-635)÷25,
=(1260-635)÷25,
=625÷25,
=25;
(3)38×101,
=38×(100+1),
=38×100+38×1,
=3800+38,
=3838.