20以內(nèi)連減競賽作業(yè)練習(xí)題姓名：班級(jí)：日期：用時(shí)：分鐘得分：4-2-2=12-1-11=16-7-6=7-3-4=7-2-4=10-1-9=5-1-1=16-5-8=10-3-6=17-15-2=4-2-1=19-10-4=11-3-7=11-7-1=14-6-2=13-6-7=4-1-3=13-11-2=19-13-1=5-3-2=6-1-2=3-1-2=10-1-8=8-3-5=17-13-2=7-3-4=11-1-9=18-5-11=4-1-1=9-5-4=16-13-3=17-13-2=11-2-3=14-4-9=16-14-1=5-3-1=13-3-5=17-8-5=8-5-1=20-10-8=8-1-2=20-7-8=16-10-3=19-9-7=12-3-7=12-9-2=4-2-2=17-6-9=6-2-3=10-3-4=16-1-15=14-4-9=15-8-5=9-4-3=14-7-1=4-2-1=18-2-2=15-8-1=12-9-1=6-2-2=10-5-3=16-11-1=8-3-1=16-7-7=17-9-5=6-2-1=13-4-5=17-4-11=15-1-2=12-10-1=14-9-2=9-7-2=9-4-4=18-13-4=20-7-13=7-4-2=14-9-1=7-4-3=3-1-2=6-2-4=14-6-4=4-2-2=10-7-1=13-5-2=16-8-3=7-4-2=17-3-11=16-4-10=12-6-6=11-4-3=5-2-1=11-3-2=18-11-5=14-7-1=3-1-1=9-2-5=7-1-4=13-9-2=8-2-5=5-3-2=16-7-1=16-6-3=8-4-4=7-5-2=6-3-3=20-1-19=12-10-2=10-3-6=19-13-5=7-1-4=14-6-8=8-3-5=7-5-2=20-13-1=14-10-2=8-2-5=13-7-3=11-1-5=19-6-4=8-2-1=5-3-1=12-1-3=5-3-2=3-1-1=13-4-7=9-2-4=8-3-5=10-2-3=12-5-2=17-4-5=7-3-1=13-4-4=11-9-2=13-7-4=15-1-7=5-1-2=14-11-2=10-3-7=10-5-3=8-3-5=16-4-11=18-9-5=6-2-4=9-6-3=13-7-1=14-11-2=8-1-6=5-3-1=6-1-1=9-4-2=16-7-9=3-1-1=18-4-7=9-3-3=20-5-10=6-4-1=19-1-2=9-7-2=11-4-4=10-8-2=19-2-16=19-15-1=9-5-4=13-3-3=7-4-3=3-1-1=9-6-1=12-5-1=5-1-1=14-1-7=14-5-8=11-8-2=17-15-1=18-12-3=8-2-3=9-4-5=5-3-1=8-4-3=9-1-1=9-2-3=14-5-3=12-7-5=16-12-2=7-4-1=17-13-4=8-4-2=18-15-2=6-2-2=3-1-1=7-2-2=19-3-11=13-9-2=3-1-1=15-10-4=4-1-2=13-10-1=16-3-3=8-1-5=12-10-2=10-4-1=10-4-6=10-6-1=13-10-3=4-2-1=19-10-3=11-8-1=9-5-1=11-7-3=3-1-1=14-1-13=16-13-2=20-13-2=15-11-4=3-1-1=6-1-4=18-4-8=5-1-4=5-3-1=18-6-3=18-10-5=20-17-1=12-10-2=7-3-1=5-2-3=8-5-3=17-15-1=18-11-4=4-2-1=20-2-1=6-4-2=5-2-1=10-7-2=15-3-12=9-6-2=11-8-1=3-1-2=20-13-5=14-12-1=18-7-5=20-3-5=13-8-2=7-2-2=10-5-2=4-1-3=17-10-7=19-17-1=7-1-4=4-2-1=14-12-1=5-3-1=6-4-1=17-12-2=9-2-3=5-2-3=8-2-1=18-15-3=6-2-2=13-10-3=16-7-8=3-1-1=14-4-6=10-5-2=20-9-4=8-5-1=6-4-1=20-15-3=16-6-10=19-1-11=15-5-6=15-13-2=16-11-5=4-2-1=3-1-1=15-10-5=12-4-1=14-9-1=11-5-6=19-13-3=15-1-10=9-6-3=11-9-1=13-8-4=20-17-1=3-1-1=17-4-13=10-7-1=20-11-7=10-2-8=15-3-10=13-2-4=3-1-1=18-9-2=17-14-2=6-1-3=15-10-3=18-13-1=5-1-2=7-2-2=10-5-1=13-1-4=20-8-6=10-2-1=11-3-3=11-8-3=11-3-4=20-14-6=18-6-3=19-6-1=6-4-2=14-7-5=20-6-11=19-9-10=6-4-2=15-2-13=20-16-2=17-4-13=7-5-2=12-6-1=11-4-6=16-10-2=3-1-1=17-9-1=3-1-1=4-1-1=15-12-3=19-11-5=7-1-4=4-2-1=11-7-3=16-5-11=16-11-5=7-5-2=14-10-1=11-2-3=16-9-7=10-8-1=12-3-9=4-2-1=9-2-3=16-8-8=16-8-7=13-8-4=14-4-8=13-2-8=15-6-9=17-1-5=15-12-1=3-1-1=3-1-2=18-16-2=15-10-4=7-4-3=20-11-6=10-3-1=5-3-2=9-3-3=7-5-2=8-6-1=15-8-3=14-11-3=18-1-2=10-3-4=16-14-1=5-3-2=16-12-3=15-9-2=3-1-2=14-11-3=19-17-2=6-2-3=5-2-1=10-1-3=11-6-5=13-11-2=13-11-1=4-2-1=12-5-7=12-4-4=17-12-3=11-2-8=19-12-7=4-2-2=17-7-2=9-4-4=9-5-1=4-2-1=6-1-3=13-10-2=3-1-1=4-2-1=3-1-1=18-12-2=11-5-5=7-4-2=18-15-3=14-1-3=9-5-3=9-3-2=6-1-4=20-5-3=17-4-6=14-5-8=6-1-5=7-3-2=17-2-13=17-15-2=17-13-4=4-1-1=19-11-4=6-3-2=5-3-2=16-8-7=10-4-5=13-8-5=4-1-1=15-2-9=17-1-12=9-1-6=8-1-7=16-6-5=14-12-2=14-8-1=11-2-5=14-9-3=5-3-2=8-2-4=8-1-4=10-4-1=12-8-1=11-8-1=3-1-1=10-3-7=16-4-4=11-5-5=9-2-4=16-2-5=9-3-5=19-14-2=15-13-1=20-10-1=10-1-9=18-5-12=10-2-6=20-9-5=13-10-2=16-10-2=4-1-3=3-1-1=17-9-4=17-5-10=17-3-2=17-6-1=15-6-7=20-3-16=9-7-2=3-1-1=12-2-8=15-11-4=16-3-5=4-2-2=17-11-2=15-12-3=17-1-9=11-6-5=18-11-4=20-11-7=6-4-1=8-2-5=3-1-2=7-4-2=13-8-1=10-6-4=7-4-3=19-1-2=9-4-3=13-11-2=17-1-14=16-6-3=11-7-3=9-4-3=6-4-1=10-8-1=17-1-8=4-1-3=8-2-4=18-11-6=5-2-2=12-1-6=11-4-7=4-1-3=7-3-3=4-2-2=12-7-5=12-2-6=4-1-2=17-1-3=15-10-2=17-3-10=13-1-5=19-13-3=6-1-5=11-4-4=8-4-2=17-8-4=11-6-1=12-5-6=16-13-3=5-3-2=9-4-3=11-3-4=10-6-4=20-4-13=17-1-3=14-10-4=17-14-2=11-8-1=18-9-1=12-1-3=11-8-1=11-5-3=15-10-5=16-9-5=19-10-7=10-4-3=9-7-2=6-4-2=17-2-1=13-8-3=7-2-5=5-3-2=6-1-1=8-4-1=17-14-2=13-10-1=8-3-3=19-5-6=16-8-6=3-1-1=16-2-2=12-9-1=17-12-5=3-1-1=5-1-4=15-7-3=18-9-5=14-7-4=9-7-2=16-7-9=13-6-6=18-14-1=6-1-5=12-3-6=10-8-1=8-2-6=7-5-2=9-7-1=10-7-3=20-6-14=7-1-5=9-6-3=16-10-6=20-18-1=18-9-3=8-6-1=9-7-2=8-5-3=7-4-2=15-5-6=12-9-3=18-16-1=17-4-3=4-1-2=7-5-2=20-4-12=14-7-7=14-2-11=12-3-9=11-1-1=16-11-5=13-8-5=8-1-7=8-2-5=17-8-5=14-4-9=4-1-1=13-7-4=19-5-7=19-10-3=13-5-1=6-2-4=20-13-5=17-10-2=16-2-3=3-1-2=12-5-7=14-5-3=4-2-1=5-3-2=3-1-2=11-1-10=4-1-1=14-5-4=15-8-1=17-13-3=13-1-5=19-9-9=3-1-1=18-6-4=12-1-2=7-5-1=8-4-4=15-2-12=10-4-2=17-6-1=12-10-2=17-5-6=3-1-1=20-4-2=19-11-5=12-1-11=16-8-1=16-2-10=12-7-4=11-8-1=8-6-1=7-1-5=17-11-1=9-2-3=7-1-5=18-4-6=7-4-3=4-2-2=16-2-13=20-18-2=4-1-3=5-1-1=3-1-2=18-12-6=16-9-5=5-1-3=8-4-3=11-6-4=4-1-3=16-8-1=4-2-2=20-10-7=17-11-5=13-7-4=16-4-2=18-6-10=11-7-1=17-9-6=19-15-2=13-11-1=18-8-8=7-4-1=18-7-1=14-2-8=20-13-6=3-1-1=6-3-2=19-3-2=20-14-2=13-3-7=10-1-5=13-9-1=12-4-7=17-2-3=12-6-3=13-1-3=17-6-7=12-3-7=13-1-1=10-8-2=8-2-4=13-1-8=20-11-2=8-1-3=19-13-1=11-3-7=8-5-3=10-6-3=3-1-2=11-6-2=7-4-3=16-8-8=7-1-3=11-7-2=19-3-3=6-1-3=8-4-3=20-15-1=17-7-8=5-2-2=8-6-1=13-1-3=12-9-2=5-1-4=16-13-3=5-1-2=19-2-11=10-3-2=10-6-4=19-16-2=19-16-2=11-7-1=4-1-2=3-1-2=10-2-3=20-10-10=5-3-2=17-14-1=20-12-1=13-7-4=7-5-1=12-1-8=5-3-2=14-3-2=17-9-3=8-5-1=16-5-2=12-8-1=8-3-1=14-11-1=9-7-2=5-2-2=7-4-1=11-9-2=19-9-5=7-2-5=18-15-1=11-6-5=20-10-7=7-3-3=3-1-1=20-13-1=7-1-6=6-1-2=7-2-3=6-3-1=12-5-7=10-3-6=16-12-4=16-9-7=16-5-6=11-6-1=15-9-4=7-5-1=10-8-2=20-7-7=19-9-8=16-1-11=14-9-5=7-5-2=4-1-1=12-1-4=18-5-10=11-8-2=17-15-2=18-6-12=19-2-4=15-11-1=5-3-2=3-1-1=17-10-4=7-4-2=20-10-1=17-6-11=11-2-7=7-2-1=18-8-2=16-14-2=14-9-5=8-2-2=20-13-1=9-4-2=5-2-2=20-13-2=4-2-2=20-8-3=18-13-1=6-2-1=4-1-3=9-4-2=18-14-1=14-4-7=20-12-5=12-7-4=19-8-8=9-7-1=16-3-5=14-3-7=20-16-4=20-6-5=6-1-2=16-7-5=18-14-1=3-1-1=18-11-6=9-5-3=19-2-5=7-5-1=6-3-1=18-7-3=20-15-5=9-2-4=6-2-4=18-2-16=11-1-9=4-1-1=18-8-9=20-4-16=14-10-3=13-4-4=3-1-1=9-2-4=4-2-1=16-4-5=19-6-8=14-7-2=15-10-1=4-2-1=6-3-1=16-6-1=17-1-13=19-17-1=12-4-1=14-5-4=7-3-3=9-6-3=14-11-3=10-4-1=13-1-6=6-4-2=7-1-2=12-2-5=15-6-5=12-7-5=8-4-4=20-10-1=13-8-3=3-1-2=6-1-1=12-9-1=4-2-1=11-5-1=14-1-9=19-15-4=13-4-5=12-2-9=20-5-11=12-5-4=5-2-3=19-10-2=9-4-3=18-6-5=12-2-4=17-15-1=11-1-8=10-8-1=10-7-2=11-6-2=17-15-2=5-3-2=20-9-11=20-11-3=6-3-3=19-17-2=5-2-1=9-3-1=17-8-7=12-6-4=15-2-12=15-11-3=13-3-4=18-2-9=5-3-2=8-6-1=10-7-2=5-1-2=4-2-1=8-5-2=20-3-6=11-3-1=8-4-3=5-1-1=4-2-2=1