竖式计算56×43=172×21=505×60=240×80=_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题解答题

竖式计算 56×43=	172×21=
505×60=	240×80=

答案

56×43=2408；

	56
×	43

.

	168
	224

.

2408

172×21=3612；

	172
×	21

.

	172
	344

.

3612

505×60=30300；

	505
×	60

.

30300

240×80=19200．

	240
×	80

.

19200

选择题

After we came into the house, we found him lying on the ground with his mouth _______ and eyes ________.

A．open, close

B．opened, closed

C．opened, close

D．open, closed

单项选择题

金属长梁只能与单体液压支柱配合使用，适于煤层倾角小于20°，采高（），顶板较平整的工作面。

A.1.8m～2.4m

B.2.8m～3.4m

C.1.8m～2.8m