您现在的位置是:首页 > 学科知识查询 > 小学数学题库

把下面的算式补充完整. (1)18.7-16.4+ =18.7+-16.4 =20-16.4 = (2)35.67++21.35 =35.67+( +21.35) =35.67+50 = (3)54.

编辑:chaxungu时间:2026-04-27 13:10:20分类:小学数学题库

把下面的算式补充完整。
(1)18.7-16.4+( )
=18.7+( )-16.4
=20-16.4
=( )
(2)35.67+( )+21.35
=35.67+( +21.35)
=35.67+50
=( )
(3)54.37-( )-9.23
=54.37-( +9.23)
=54.37-10
=( )
(4)33.25+6.23-( )
=33.25-( )+6.23
=30+6.23
=( )
(1)1.3;1.3;3.6;(2)28.65;28.65;85.67;(3)0.77;0.77;44.37;(4)3.25;3.25;36.23