三个三个逆序的数 - 235,232,229,226,223, 七个七个顺序地数 - 628,635,642,649,656, 两个两个逆序地数 - 563,561,559,557,555, 四个四个逆序地数 - 834,830,826,822,818, 六个六个顺序地数 - 487,493,499,505,511,

数学二年级 数列的规律(上)

Leaderboard

Visual style

Mga Option

I-switch ang template

I-restore ang gi-autosave: ?