口算技巧一——20以内减法口诀表
(2017-06-01 19:35:53)分类: 小课题口算资料 |
20以内减法口诀表
1-1=0 |
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2-1=1 |
2-2=0 |
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3-1=2 |
3-2=1 |
3-3=0 |
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4-1=3 |
4-2=2 |
4-3=1 |
4-4=0 |
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5-1=4 |
5-2=3 |
5-3=2 |
5-4=1 |
5-5=0 |
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6-1=5 |
6-2=4 |
6-3=3 |
6-4=2 |
6-5=1 |
6-6=0 |
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7-1=6 |
7-2=5 |
7-3=4 |
7-4=3 |
7-5=2 |
7-6=1 |
7-7=0 |
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8-1=7 |
8-2=6 |
8-3=5 |
8-4=4 |
8-5=3 |
8-6=2 |
8-7=1 |
8-8=0 |
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9-1=8 |
9-2=7 |
9-3=6 |
9-4=5 |
9-5=4 |
9-6=3 |
9-7=2 |
9-8=1 |
9-9=0 |
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10-1=9 |
10-2=8 |
10-3=7 |
10-4=6 |
10-5=5 |
10-6=4 |
10-7=3 |
10-8=2 |
10-9=1 |
10-10=0 |
11-1=10 |
11-2=9 |
11-3=8 |
11-4=7 |
11-5=6 |
11-6=5 |
11-7=4 |
11-8=3 |
11-9=2 |
11-10=1 |
11-11=0 |
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12-1=11 |
12-2=10 |
12-3=9 |
12-4=8 |
12-5=7 |
12-6=6 |
12-7=5 |
12-8=4 |
12-9=3 |
12-10=2 |
12-11=1 |
12-12=0 |
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13-1=12 |
13-2=11 |
13-3=10 |
13-4=9 |
13-5=8 |
13-6=7 |
13-7=6 |
13-8=5 |
13-9=4 |
13-10=3 |
13-11=2 |
13-12=1 |
13-13=0 |
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14-1=13 |
14-2=12 |
14-3=11 |
14-4=10 |
14-5=9 |
14-6=8 |
14-7=7 |
14-8=6 |
14-9=5 |
14-10=4 |
14-11=3 |
14-12=2 |
14-13=1 |
14-14=0 |
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15-1=14 |
15-2=13 |
15-3=12 |
15-4=11 |
15-5=10 |
15-6=9 |
15-7=8 |
15-8=7 |
15-9=6 |
15-10=5 |
15-11=4 |
15-12=3 |
15-13=2 |
15-14=1 |
15-15=0 |
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16-1=15 |
16-2=14 |
16-3=13 |
16-4=12 |
16-5=11 |
16-6=10 |
16-7=9 |
16-8=8 |
16-9=7 |
16-10=6 |
16-11=5 |
16-12=4 |
16-13=3 |
16-14=2 |
16-15=1 |
16-16=0 |
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17-1=16 |
17-2=15 |
17-3=14 |
17-4=13 |
17-5=12 |
17-6=11 |
17-7=10 |
17-8=9 |
17-9=8 |
17-10=7 |
17-11=6 |
17-12=5 |
17-13=4 |
17-14=3 |
17-15=2 |
17-16=1 |
17-17=0 |
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18-1=17 |
18-2=16 |
18-3=15 |
18-4=14 |
18-5=13 |
18-6=12 |
18-7=11 |
18-8=10 |
18-9=9 |
18-10=8 |
18-11=7 |
18-12=6 |
18-13=5 |
18-14=4 |
18-15=3 |
18-16=2 |
18-17=1 |
18-18=0 |
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19-1=18 |
19-2=17 |
19-3=16 |
19-4=15 |
19-5=14 |
19-6=13 |
19-7=12 |
19-8=11 |
19-9=10 |
19-10=9 |
19-11=8 |
19-12=7 |
19-13=6 |
19-14=5 |
19-15=4 |
19-16=3 |
19-17=2 |
19-18=1 |
19-19=0 |
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20-1=19 |
20-2=18 |
20-3=17 |
20-4=16 |
20-5=15 |
20-6=14 |
20-7=13 |
20-8=12 |
20-9=11 |
20-10=10 |
20-11=9 |
20-12=8 |
20-13=7 |
20-14=6 |
20-15=5 |
20-16=4 |
20-17=3 |
20-18=2 |
20-19=1 |
20-20=0 |