100以内加法减法口算练习题无进位退位
94 - 90 =7 _ 3 =67 — 53 =31 + 67 =89 - 30 =29 — 7 =38 — 28 =73 — 10 =93 - 90 =37 - 10 =72 + 13 =58 —
100以内加法减法口算练习题无进位退位