小学一年级20以内进位加法口诀表/退位减法口诀表
20以内进位加法口诀表9+2=11
| 8+3=11
| 7+4=11
| 6+5=11
| 9+3=12
| 8+4=12
| 7+5=12
| 6+6=12
| 9+4=13
| 8+5=13
| 7+6=13
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| 9+5=14
| 8+6=14
| 7+7=14
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| 9+6=15
| 8+7=15
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| 9+7=16
| 8+8=16
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| 9+8=17
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| 9+9=18
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20以内退位减法口诀表11-9=2
| 11-8=3
| 11-7=4
| 11-6=5
| 11-5=6
| 11-4=7
| 11-3=8
| 11-2=9
| 12-9=3
| 12-8=4
| 12-7=5
| 12-6=6
| 12-5=7
| 12-4=8
| 12-3=9
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| 13-9=4
| 13-8=5
| 13-7=6
| 13-6=7
| 13-5=8
| 13-4=9
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| 14-9=5
| 14-8=6
| 14-7=7
| 14-6=8
| 14-5=9
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| 15-9=6
| 15-8=7
| 15-7=8
| 15-6=9
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| 16-9=7
| 16-8=8
| 16-7=9
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| 17-9=8
| 17-8=9
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| 18-9=9
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小宝门门都考了100分~~~喂，醒醒，枕头湿了！！！
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雷达卡