得数是7的减法算式有什么规律
减法算式中得数为7的规律如下:
7 - 0 = 7
8 - 1 = 7
9 - 2 = 7
10 - 3 = 7
11 - 4 = 7
12 - 5 = 7
13 - 6 = 7
14 - 7 = 7
15 - 8 = 7
16 - 9 = 7
17 - 10 = 7
18 - 11 = 7
19 - 12 = 7
20 - 13 = 7
21 - 14 = 7
22 - 15 = 7
23 - 16 = 7
24 - 17 = 7
25 - 18 = 7
26 - 19 = 7
可以看出,得数为7的减法算式的规律是被减数递增1,减数递增1,差值保持为7。