计算下列各题56×1221×715(1+38)×125÷511-31154÷34×92522÷(15+16)917÷8+817÷8.-数学
题文
计算下列各题
(1+
5÷
22÷(
|
答案
(1)
=
=
=
(2)(1+
=1×12+
=12+4.5, =16.5; (3)5÷
=11-
=10
(4) |
题文
计算下列各题
(1+
5÷
22÷(
|
答案
(1)
=
=
=
(2)(1+
=1×12+
=12+4.5, =16.5; (3)5÷
=11-
=10
(4) |