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1、20以内的加减法100道题附答案3+9 =4+7 =8+8 =8+7 =6+9 =12-10=13-3=9-6=5+7 =2+8=0+9=10-6=14-4-3=4+0+8=8+9-10=3+9-2=10-10+4=1+9+5=11-1-8 =19-10-9=6+5 =0+8=10-9=14-3=74=4+7=14+4=5-3.166+4=18-8-8=9-6+5=74=4+11 =6+7=8+3=17-7 =13+5=7+7=9+2=10-3=8+2+6=9+4-10=3+4+7=0+9=.5+5 =2+9=14-2=19-4=7+8=6+5=.8-5=17-7-3 =19-9-8 =4+8
2、+6=9+4=8-3=6+6+4=.6+7=7+8=.17-7+3=.144=18-10=5+5+5=.16-5+6=5+5-6=8+63=8+8=2+7=.15-4+6=8+10=164=18-3-5 =9+9=.9+7=.6+9+1=.7+3+2=17-7-3=5+9-2=3+6=2+3=.4+6=9-5=3+5+7=10-2=4+8=.19-3-5 =7+8=.13-1 =9-6+5=10-9=18-8-6=18-4=9+8=.5+8=.166+3 =4+7=.17-2=4+8=.6+9=8+2+10=参考答案12; 11; 16; 15; 15; 2; 10; 3; 12; 10; 9
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