小学一年级数学上册-凑十法-破十法-借十法-练习题
余年寄山水
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2021年01月22日 06:06
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9 + 6 = 9 + 5 = 9 + 4 =
9 + 3 = 9 + 2 = 9 + 7 =
9 + 8 = 9 + 9 = 8 + 8 =
8 + 7 = 8 + 9 = 8 + 6 =
8 + 5 = 8 + 4 = 8 + 3 =
7 + 9 = 7 + 8 = 7 + 7 =
7
+ 6 = 7 + 4 = 7 + 5 =
6 + 9 = 6 + 8 = 6 + 7 =
6 + 6 = 6 + 5 = 5 + 9 =
//
5 + 8 = 5 + 7 = 5 + 6 =
4 + 9 = 4 + 8 = 4 + 7 =
3 + 9 =
18
–
9 =
14
–
9 =
17
–
8 =
13
–
8 =
15
–
7 =
3 + 8 = 2 + 9 =
17
–
9 =
16
–
9 =
15
–
9 =
13
–
9 =
12
–
9 =
11
–
9 =
16
–
8 =
15
–
8 =
14
–
8 =
12
–
8 =
11
–
8 =
16
–
7 =
14
–
7 =
13
–
7 =
12
–
7 =
//
11
–
4=
12
–
3 =
11
–
3 =
11
–
2 =
11
–
5 =