98 加法 1 等于多少？
98 + 1 = 99
98加法1 等于 99
竖式演算
验算
- 用减法验算：99 − 1 = 98
- 用减法验算：99 − 98 = 1
相关题目
98 + 2 = 100
98 + 3 = 101
98 + 4 = 102
98 + 5 = 103
98 + 6 = 104
98 + 7 = 105
98 + 8 = 106
98 + 9 = 107
97 + 1 = 98
99 + 1 = 100
96 + 1 = 97
100 + 1 = 101
95 + 1 = 96
94 + 1 = 95
93 + 1 = 94
92 + 1 = 93
1 + 98 = 99
2 + 97 = 99
3 + 96 = 99
4 + 95 = 99
5 + 94 = 99
6 + 93 = 99
10 + 18 = 28
1 + 30 = 31
21 + 2 = 23
41 + 12 = 53
33 + 50 = 83
10 + 28 = 38
11 × 9 = 99
100 - 1 = 99