. -
. . -
22 3 3 4 4 4
0 2 1 1 0 3 1 2 0 4 1 3 2 2
0 + 2 = 0 + 3 = 3 – 0 = 0 + 4 = 4 – 0 =
1 + 1 = 3 + 0 = 3 – 1 = 4 + 0 = 4 + 1 =
2 – 0 = 1 + 2 = 3 – 2 = 1 + 3 = 4 – 2 =
2 – 1 = 2 + 1 = 3 – 3 = 3 + 1 = 4 – 3 =
2 + 2 = 4 – 4 =
5 5 5 6 6 6 6
0 5 1 4 2 3 0 6 1 5 2 4 3 3
0 + 5 = 5 – 0 = 0 + 6 = 6 – 0 =
5 + 0 = 5 – 1 = 6 + 0 = 6 – 1 =
1 + 4 = 5 – 2 = 1 + 5 = 6 – 2 =
4 + 1 = 5 – 3 = 5 + 1 = 6 – 3 =
2 + 3 = 5 – 4 = 2 + 4 = 6 – 4 =
3 + 2 = 5 – 5 = 4 + 2 = 6 – 5 =
3 + 3 = 6 – 6 =
7 7 7 7 8 8 8 8 8
0 7 1 6 2 5 3 4 0 8 1 7 2 6 3 5 4 4
0 + 7 = 3 + 4 = 7 – 2 = 0 + 8 = 3 + 5 = 8 – 3 =
7 + 0 = 4 + 3 = 7 – 3 = 8 + 0 = 5 + 3 = 8 – 4 =
1 + 6 = 7 – 4 = 1 + 7 = 4 + 4 = 8 – 5 =
6
二十以内的数的分解 来自淘豆网m.daumloan.com转载请标明出处.
