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1、.!.20以加减法口算题 计时 3+18=18-5=16-7=4+12=5+13=17-6=6+3=11-4=12+5=11-2=15+1=19-11=10+9=16-7=2+15=16-15=15+3=9-4=20-1=6+8=2+5=11-10=2+6=10+1=13+4=20-1=2+7=15-12=1+2=20-3=17-16=9+1=19-6=5+2=14-1=13+7=19-4=3+5=17+3=14+3=3+8=8+4=4+12=1+5=1+14=9-8=19-18=6+13=13-3=3+14=14+3=13+5=10+2=2+5=17-3=3+7=.!.12-8=9-4=20
2、-13=17-1=12+3=5+6=13+6=6+7=5+2=7+7=12-11=5+8=15-5=20-1=18-12=7+1=20-6=8+6=3+13=1+19=11+6=2+10=7+13=10-2=17-16=1+8=14+2=1+12=9+5=11-10=3+3=8+2=8+12=3+17=8+4=1+4=2-1=9+9=19-5=20-18=8+7=20-3=17-10=5+6=20以加减法口算题 计时 1+16=9+1=9+10=6+14=10-2=18-17=8-6=9+6=18-8=13+2=19-12=17-12=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算
3、题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.7-5=16-4=11+9=2+12=13-1=16-8=15-8=19-16=2+8=14+3=3+4=15+5=19-4=5-1=19-10=7-1=19-17=6+13=11-3=20-15=20-1=10+4=7-6=19-16=6-3=5
4、+8=20-19=1+8=11+7=9+7=9-1=17-9=17-7=18-4=14-13=14+3=5+13=13-2=6-1=15-2=10-1=12-2=9+5=13-1=3+5=12+8=11+7=16-5=18-13=15-5=4+5=13+4=6+7=12-1=7-2=5+3=5-2=15+5=12+1=19-16=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题
5、计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.4+12=14-6=7+8=16-6=3+7=11-9=13-7=19-18=3+6=20-9=1+18=4+11=7+13=1+7=13+2=17-8=17-7=2+5=3-2=7+10=16-10=5+6=11-10=18-16=14-2=18-2=11+7=10-8=20以加减法口算题 计时 16-10=5+6=11-10=18-16=7+12=9-1=20-15=10-9=20-8=20-11=20-5=20-18=14+2=14-10=6+11
6、=12+7=12-10=14+5=18-4=9+8=6+3=16-4=18-12=1+17=14+2=4+4=10-2=14-6=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.12-6=12+6=15+2=5+13=11-3=2+1=1
7、6-14=9+6=1+8=4+12=3+13=7+6=14-3=18-5=19-15=12+1=12-1=18-1=13-11=16+1=9-2=16-7=16-15=16+4=18-14=18-5=20-19=17-5=20-16=10-5=11-4=1+8=16-11=17-5=6+2=6+10=14-9=18-11=2+13=6+8=13-12=13-3=19-4=19-18=8+5=6+13=17-3=20-6=7-4=1+17=7-2=7+3=5-2=14-2=14-8=20-15=15+4=17-6=6+2=9-4=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以
8、加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.11-2=16-6=14+1=2+5=11-8=2+17=2+10=8+12=14+3=8-2=17+1=11-9=20以加减法口算题 计时 11-8=2+17=2+10=8+12=20-5=18-13=15-9=18-15=1+8=19-14=19-12
9、=20-13=10+5=18-6=18-14=14-8=12-9=11-8=17+3=1+3=7+8=8-7=7-4=2+5=5-2=14-3=8+9=7+12=13-1=9+3=20-19=5-1=17-3=12+2=19-18=20-15=15-5=12-3=6+4=19-8=7+5=18-11=8+9=10-4=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法
10、口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.19-13=3+1=4+10=2+3=7+6=8+9=1+18=3+15=12-3=19-12=11+2=7+4=15-1=9-3=15-5=19-9=17+2=6+12=10+1=11-5=9+7=15-1=14+5=2+11=1+5=6-1=4+15=4+4=2+10=17-3=15+2=7+10=6-5=18+2=2+14=4+7=5+4=13-4=6+1=10-9=19-11=14+6=2+18=1+12=16-8=10-8=13+3=4-1=8+4=1+9
11、=14-5=8+1=4+4=7+2=16-2=16+4=20以加减法口算题 计时 口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.16-8=10-8=13+3=4-1=3+11=17+3=14-13=10+9=19-11=6+4=12+6
12、=18-5=1+17=6-5=3+16=1+6=17-11=10-1=20-1=14+1=3+10=17-14=18-7=7+10=10-2=19-10=20-4=8+11=9-7=15-10=4+9=19-1=6+6=14-3=18-7=20-13=16+2=3+4=14-5=16-2=14-1=17-2=7+8=6+3=2+14=20-13=4-2=6+8=8-1=20-16=6+5=17-13=5+12=5+2=14+1=9-2=5+6=11-6=10+9=5+8=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减
13、法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.4+11=18-17=13-1=13-2=5+2=4+14=2+4=5+3=3+11=13-6=13-5=10-9=8+7=11+2=15-10=15-4=4+4=5+10=5+8=9+6=6-2=4-3=2+18=8-2=14-2=14-11=14+2=1+2=5+2=4+12=20-7=1+19=4+12=9
14、-8=5+10=19-14=5+9=20-1=19-15=7+1=20以加减法口算题 计时 4+12=9-8=5+10=19-14=14-3=6+14=4+16=10-3=10-2=7-1=7+5=5+10=19-18=6-3=7+4=14+6=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口
15、算题计时以加减法口算题计时以加减法口算题计时以加减.!.17-15=4+15=14-4=15-2=14-10=16-13=20-10=5+2=1+17=13-1=9-1=16-14=4+5=3+15=9-2=9+11=10-5=12+8=2+1=10-4=1+8=18-7=19-7=9+5=3+4=19-4=14+5=10+7=14+6=13+4=17-6=7+9=12+4=5+9=15+2=9+4=18-4=14-3=4+6=6+2=19-5=19-9=2+14=7+2=17+3=19-6=4+10=17-3=20-8=18-14=9-5=4+12=5+6=1+2=18-5=9+6=3+1=
16、9+7=6-3=14-13=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.3+11=1+8=19-11=16-4=17-3=10+3=15-11=18-16=19-1=10-7=16-12=8+3=10+2=7+12=9+7=19-15
17、=3+15=11-10=13-2=15-11=17+1=18-8=1+18=5+12=20以加减法口算题 计时 3+15=11-10=13-2=15-11=9+2=1+14=17-7=5+9=18-17=4+12=2-1=10-5=16-6=17-12=7+1=9+3=12+4=12+5=19-8=17-7=6+12=18-15=19-9=7+1=17-6=7+12=2+6=14+3=9+2=4+14=13-2=18-6=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以
18、加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.5+10=14-11=3+8=17+2=19-8=18-8=7-6=18-15=14-1=16+2=18-11=19-16=16-5=7+13=19-10=6-1=15-5=10+10=19-8=5+9=6-2=3+14=11-2=3-2=2+3=15-13=11-10=20-10=10-8=16-14=2+7=3+11=5+1=15-3=17-1=15+3=1
19、7-5=6+13=3+13=17-11=14-3=5+5=14-9=1+7=18-6=19-2=9+8=18+2=15-6=18-8=3+11=11+1=16-7=9+7=15+3=7+8=3+10=12+8=1+6=11+4=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口
20、算题计时以加减法口算题计时以加减.!.18-7=10-6=2+14=1+17=14+2=10+9=6+3=4+11=20以加减法口算题 计时 20-17=7+13=19-10=6-1=15-6=12-7=5-1=16-13=3+17=10+5=13+4=19-11=14-7=18-17=1+10=6+8=13+3=4+1=9+8=2+5=17-7=20-4=20-19=1+6=2+13=18-3=5-2=6+7=2+17=5+4=12-8=11+8=16-4=9+11=15-3=11+4=17-15=12+1=10-4=5+4=14-8=13-11=15-1=7+10=16-1=11-1=7+
21、1=13-9=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.12+5=7+10=16-5=9-3=7+10=3+4=20-18=19-1=3+7=18-10=14-10=1+17=20-1=18-2=1+7=1+14=2+13=13+2
22、=6+3=2+15=6+9=6-2=12-2=2+10=1+13=6-5=19-16=8+8=9+5=5+2=10+9=6+13=17-7=9+11=5-2=12+7=15-5=16-15=8-1=3+14=3+5=9+6=19-6=4+12=2+18=20-14=3+11=16-11=15-9=10+8=4+5=14-13=20以加减法口算题 计时 20-7=10-6=2+14=1+17=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减
23、法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.14+2=17-5=14-9=11+1=8+12=18-1=13+1=19-4=19-12=13-10=8-1=16-4=12+4=3+5=15+1=1+2=16-4=3+2=12-10=1+15=17-1=18-10=15-8=3+3=7+9=8-3=10+10=6+10=13-9=14+5=20-17=13+7=10-2=11-4=2+17=6+5=13-8=15+3=11-6=4+3=1
24、6-2=17-11=7+12=10+9=6+13=14-11=8+3=3+1=11-7=2+18=4+16=17-3=20-7=4-2=1-4=19-11=4+1=15-13=1-9=5+6=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!
25、.14-6=8+9=10-7=11+4=10+10=10+9=2+13=10-4=5+3=3+12=5+13=15+3=9+6=9+9=7+7=7+10=17-4=4+11=6-1=8+5=10+5=9+6=3+9=8-1=16-11=3+11=3+5=19-5=4+3=9-2=8+11=20-5=16-12=1+11=2+12=20-8=20以加减法口算题 计时 10+10=10+9=2+13=10-4=17-7=9+11=5-2=12+7=20-17=7+13=19-10=6-1=15-9=10+10=13-8=5+9=6-2=3+14=11-2=3-2=口算题计时以加减法口算题计时以加减
26、法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.2+3=15-13=11-10=20-10=10-8=16-14=2+7=3+11=5+1=15-3=17-1=15+3=17-5=6+13=3+13=17-11=14-3=5+5=14-9=1+7=4-3=7+2=2+6=
27、1+6=11+5=6+8=7-3=20-10=9+4=1+19=12-10=16-9=10-2=7-1=7+5=5+10=19-18=6-3=7+4=14+6=17-15=4+15=14-4=15-2=14-10=16-13=20-11=5+2=1+17=13-1=9-1=16-14=4+5=3+15=9-2=9+11=17-13=14-13=9+3=5+12=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时
28、以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.12+7=13+4=16-11=17+3=6+8=20-9=8-2=20-5=3+8=15-2=10+6=13-9=10+1=14+5=18-7=10+2=10+6=16-6=10+9=10+3=20以加减法口算题 计时 16-2=17-11=7+12=10+9=11+2=19-5=11+4=15-3=11+5=18-5=11+7=11+8=11+9=12+3=18-8=12+4=13-2=12+5=12+7=16-5=1
29、2+8=13+1=18-4=17-4=13+2=19-7=10+7=18-3=13+3=19-8=13+4=10+5=14-4=13+5=13-3=13+7=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.15-2=14+1=12-2=1
30、4+2=16-4=14+3=17-5=10+8=18+2=17-6=14+6=15+1=15+2=15+3=19-0=15+4=12+6=20-0=14-3=15+5=14-2=16+1=16+2=17-0=16+3=11+3=16+4=17+1=17+2=17+3=18+1=19+1=20+0=12+1=10+4=3+14=19-1=19-2=19-3=19-4=11+1=19-6=11+6=19-9=18-1=11+3=18-2=18-6=17-1=11+4=13+3=17-2=10+6=17-3=14+1=17-7=13+6=16-1=12+3=16-2=口算题计时以加减法口算题计时以加
31、减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.12+8=13+4=15-4=13+2=20以加减法口算题 计时 13+2=19-7=10+7=18-3=16-3=13+1=15-1=14+2=2+5=18-0=13+5=13-1=15-5=14-1=10+5=12-1
32、=11-1=16-0=13-3=18-3=18+2=17-6=14+6=15+1=15+2=15+3=19-0=15+4=11+9=12+3=18-8=12+4=13-2=12+5=12+7=16-5=17-1=11+4=13+3=17-2=10+6=17-3=14+1=17-7=15-2=14+1=12-2=14+2=16-4=14+3=17-5=10+8=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以
33、加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.20+0=12+1=10+4=3+14=19-1=19-2=19-3=19-4=16+3=11+3=16+4=17+1=17+2=17+3=18+1=19+1=15-2=14+1=12-2=14+2=16-4=14+3=17-5=10+8=10+1=14+5=18-7=10+2=10+6=16-6=10+9=10+3=12+6=20-0=14-3=15+5=14-2=16+1=16+2=17-0=11+1=19-6=11+6
34、=19-9=18-1=11+3=18-2=18-6=20以加减法口算题 计时 16-4=14+3=17-5=10+8=6+8=9+2=7+4=5+5=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.4+9=10+6=9+5=10+4=6+
35、10=8+5=14-6=7+2=6+5=6+8=9+6=8+5=3+6=8+5=7+9=5+7=6+8=4+7=5+9=9+4=7+8=6+5=4+9=5+7=7+7=8+4=5+3=2+7=6+4=7+4=3+6=13-6=18-9=11-7=6+9=17-9=13-6=14-5=15-6=12-9=12+8=11-9=4+8=16-4=7+9=16-7=2+17=12-8=17-8=18-1=17-8=15-7=10-4=14+6=16-9=15+5=16-8=14-7=12+8=8+6=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以
36、加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.14-10=8+8=14-9=7+5=14-4=11+9=11-6=17+1=15-8=16+3=5+8=9+2=8+4=7+5=6+6=5+6=15-9=14-8=12-7=11-6=13-5=9+4=7+8=7+7=6+5=5+7=12-9=16-8=15-7=14-6=11-5=9+6
37、=20以加减法口算题 计时 16+3=11+3=16+4=17+1=8+8=7+6=6+8=5+8=6-9=11-8=13-7=15-6=12-5=9+8=5+8=7+4=6+9=5+9=13-9=13-8=14-7=12-6=14-5=9+3=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口
38、算题计时以加减法口算题计时以加减法口算题计时以加减.!.9+8=7+8=6+7=4+9=11-9=12-8=16-7=13-6=15-5=14-9=15-8=17-10=12-3=11-4=11-3=12-4=13-4=11-2=14-10=4+8=5+7=2+9=7+5=8+6=14-6=12-5=11-5=13-8=15-6=7+7=9+9=9+6=8+5=8+9=11-5=12-6=14-9=16-9=15-8=4+7=6+6=8+8=9+3=7+7=14-8=15-6=16-9=17-8=18-9=9+9=7+5=8+6=5+9=13-8=17-10=16-1=16-2=16-3=16
39、-4=1+11=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.1+12=1+13=1+14=1+15=20-10=19-1=19-2=19-3=19-4=18-5=18-6=18-7=18-8=18-9=17-5=17-6=20以加减法
40、口算题 计时 12-8=9-4=20-13=17-1=17-7=17-8=17-9=16-10=15-1=15-2=15-3=15-4=2+7=2+8=2+9=2+10=2+11=15-10=14-1=14-2=14-3=14-4=1+16=1+17=1+18=1+19=19-5=19-6=19-7=19-8=19-9=2+12=2+13=2+14=2+15=2+16=15-5=15-6=15-7=15-8=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计
41、时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.15-9=18-10=17-1=17-2=17-3=17-4=2+17=2+18=19-10=18-1=18-2=18-3=18-4=3+16=3+17=4+4=4+5=4+6=13-5=13-6=13-7=13-8=13-9=4+7=4+8=4+9=4+10=4+11=13-10=12-1=12-2=12-4=12-5=4+12=4+13=4+14=4+15=4+16=18
42、-1=11-7=15-3=19-4=16-5=12-7=9+2=8+4=7+5=6+6=5+6=15-9=14-8=12-7=11-6=13-5=9+4=7+8=7+7=6+5=5+7=12-9=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减
43、.!.20以加减法口算题 计时 15+3=9-4=20-1=6+8=16-8=15-7=14-6=11-5=9+6=8+8=7+6=6+8=5+8=16-9=11-8=13-7=15-6=12-5=9+8=5+8=7+4=6+9=5+9=13-9=3-8=14-7=12-6=14-5=9+3=9+8=7+8=6+7=4+9=11-9=12-8=16-7=13-6=15-5=9+5=8+6=7+9=3+8=4+7=14-9=15-8=17-10=12-3=11-4=11-3=12-4=13-4=11-2=14-10=4+8=5+7=2+9=口算题计时以加减法口算题计时以加减法口算题计时以加减法口
44、算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.7+5=8+6=14-6=12-5=11-5=13-8=15-6=7+7=9+9=9+6=8+5=8+9=11-5=12-6=14-9=16-9=15-8=4+7=6+6=8+8=9+3=7+7=14-8=15-6=16-9=17-8=18-9=
45、9+9=7+5=8+6=5+9=13-8=12+1=12+3=19-15=13+5=8+1=15-15=13-2=8+9=3+1=8+8=11-10=18-2=20以加减法口算题 计时 1+16=9+1=9+10=6+14=10-10=19-11=5+2=18-11=14+2=17-11=18-6=16-11=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计
46、时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.15-11=17+2=9-7=14-11=17-6=12-11=11-11=8+7=9+1=11+1=16+1=17+1=1+2=5+8=5+11=15-2=17-6=3+9=5+5=17-2=6+2=19-3=6-4=19-2=7+12=13-1=10-9=8+2=19-16=17-2=15-13=15-2=14-10=11+2=7+8=16+2=2+7=16-16=6+8=1+13=11+9=10+8=14-13=12+3=3+13=10+1=13-11=4+3=18-
47、14=17-12=14-14=5+3=19-14=6+3=9+3=16-14=10+3=14-1=15-3=6-5=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.11+3=8-6=13+3=3+12=18-10=14+3=16+3=18
48、-18=1+4=2+4=19-13=13+4=15+4=14-12=17-6=6+14=7+4=10-7=8+4=7+9=9+4=11+4=19-7=12+4=0+18=13+4=19-1=11+5=20以加减法口算题 计时 15-8=17-10=12-3=11-4=8-8=17-5=19-2=4+15=7+6=19-10=8+6=10+6=13-13=10-4=16-2=12+6=16-13=13+6=11+7=13+7=17-16=18-2=6+11=18-1=7+11=17-1=5+7=14+4=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口
49、算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减.!.15-4=18-16=15+4=15-12=11-0=16-3=7+7=16-6=17-3=11+7=12+7=11+8=12+8=4+8=19-12=11+8=4+7=10+9=12+1=18-15=19-1=14+4=16-1=11+1=9+7=14-1=13-5=3+8=11
50、-11=14-2=18+1=12-2=11+6=10-2=2+12=13-2=18-3=10+4=17-3=13-3=9-3=13-10=8-3=5-3=6+9=5+8=7+3=6+6=9+5=7+9=8+8=5+8=14-9=17-6=4+7=9+4=6+8=9+7=7+8=9+8=口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减法口算题计时以加减