问题
计算题
脱式计算。(能简算的要简算) | ||||
|
答案
(1)486-87-13
=486-100
=386
=203-0.1
=202.9
(3)2.5×1.25×4
=10×1.25
=12.5
=9.9-0.09
=9.81
脱式计算。(能简算的要简算) | ||||
|
(1)486-87-13
=486-100
=386
=203-0.1
=202.9
(3)2.5×1.25×4
=10×1.25
=12.5
=9.9-0.09
=9.81