一年级上册20以连减口算题

17-15-0=11-4-4=17-2-14=20-14-2=16-2-11=14-3-4=20-1-7=10-7-2=19-10-5=17-7-7=15-6-4=17-14-1=10-4-5=16-1-2=15-0-10=15-8-3=18-5-11=19-14-3=10-6-0=15-7-5=20-12-3=20-11-6=19-3-8=12-5-5=12-10-1=16-12-0=15-3-10=11-5-2=14-3-6=8-3-3=19-18-0=13-1-5=15-9-2=17-3-3=12-4-3=16-15-0=9-7-1=20-15-4=11-6-4=16-3-4=20-0-8=17-10-3=6-2-2=20-13-3=18-4-7=16-13-1=9-6-2=15-0-9=12-2-9=17-8-2=20-14-1=14-1-7=12-0-9=19-8-5=15-5-0=15-12-0=8-1-0=16-0-0=19-7-10=16-10-5=14-5-4=11-2-5=4-2-0=19-2-14=9-4-3=14-4-5=14-3-9=12-4-1=12-1-8=13-8-2=14-7-5=19-10-7=18-15-1=18-3-14=1-0-0=10-6-3=18-6-9=17-14-0=20-8-9=20-7-11=7-1-4=12-1-5=5-0-2=20-9-6=7-1-0=15-0-2=7-2-0=15-0-4=11-1-1=19-4-2=10-4-2=20-4-12=16-11-2=9-3-1=19-11-5=13-7-1=20-12-1=19-11-1=19-10-0=14-4-7=18-5-3=18-9-0=11-1-5=11-6-1=17-9-1=18-6-3=14-7-1=18-4-0=17-9-4=14-9-2=17-0-6=6-0-1=13-7-2=13-8-0=18-6-10=17-8-7=17-13-3=20-4-11=12-6-2=13-7-4=12-6-3=19-17-0=13-1-9=10-2-2=13-6-2=16-2-12=19-8-9=9-3-0=8-1-6=17-15-1=10-3-2=13-4-2=18-12-5=12-3-8=16-5-9=19-8-10=6-3-2=12-2-5=17-7-5=5-0-3=18-1-10=9-7-0=8-0-7=11-6-3=11-8-2=19-4-9=13-3-3=14-1-0=12-4-7=19-15-1=16-7-6=10-3-4=13-4-0=16-12-3=2-0-0=10-0-7=10-3-1=14-11-0=9-1-2=7-3-3=13-1-6=8-7-0=17-7-6=16-12-1=19-1-9=10-1-7=15-10-2=18-1-1=11-5-5=19-16-2=19-0-14=13-11-0=20-15-3=19-1-3=18-10-7=18-4-13=15-8-6=3-0-1=14-3-1=19-2-6=15-3-9=13-7-3=16-2-9=15-11-0=8-0-2=12-8-0=19-13-3=13-6-1=8-5-2=12-11-0=13-0-10=17-1-5=12-1-0=20-8-5=18-0-13=17-5-0=3-2-0=4-2-1=16-13-0=14-6-5=7-5-1=16-0-14=6-0-2=17-4-12=13-6-6=15-6-1=3-1-1=20-9-3=18-10-2=15-12-2=18-3-1=16-10-1=11-4-1=5-2-0=5-0-1=8-0-1=16-9-5=8-3-2=9-2-6=20-2-1=7-0-4=11-7-1=14-11-2=12-1-6=7-2-2=18-4-6=12-6-5=11-10-0=20-10-6=13-4-3=19-7-9=17-8-5=10-5-1=15-8-2=20-11-4=20-1-15=9-6-0=12-2-1=12-0-11=6-1-2=12-1-2=14-0-8=17-3-10=15-13-0=6-3-0=14-0-7=10-0-3=17-2-3=8-1-4=13-10-1=19-6-4=14-6-4=11-5-1=20-4-8=12-0-2=14-13-0=16-3-8=7-3-0=18-9-8=17-6-0=13-2-3=17-8-8=17-4-1=11-3-6=12-1-7=17-11-4=15-8-5=15-0-3=19-12-1=11-0-9=6-1-1=13-2-9=19-9-5=20-4-15=13-6-5=11-9-1=17-14-2=13-0-2=17-2-0=19-1-12=10-0-2=13-3-4=17-6-2=18-2-14=10-8-1=20-12-2=14-1-6=15-11-3=19-2-4=11-0-3=15-6-7=5-0-0=14-5-7=5-2-1=20-13-2=19-2-0=11-6-0=9-1-7=18-14-1=15-10-3=16-7-8=9-3-4=20-11-1=16-11-1=7-5-0=6-0-0=16-5-8=18-13-4=15-3-5=14-1-2=14-4-3=13-2-8=11-9-0=14-10-2=17-4-5=8-2-3=15-6-8=10-1-0=12-4-0=19-12-4=18-17-0=8-4-1=16-13-2=15-5-2=14-10-1=6-0-4=16-8-5=16-2-7=11-0-4=14-5-6=13-2-4=12-9-2=9-0-2=11-2-3=14-7-2=14-8-3=18-10-4=18-14-3=4-0-2=17-11-1=7-2-1=8-4-2=18-14-0=12-4-5=19-7-7=20-19-0=15-9-0=10-2-1=16-14-1=8-5-1=11-2-8=16-6-0=19-14-0=14-4-6=17-0-3=8-6-0=18-9-2=15-11-1=10-0-0=12-3-4=17-11-0=14-12-1=16-2-10=15-10-1=16-2-4=8-3-4=14-5-2=12-0-6=11-3-3=14-9-1=14-8-1=18-6-4=9-5-0=19-17-1=19-9-4=18-8-6=15-1-6=20-5-2=14-4-0=19-15-3=9-4-1=11-6-2=14-8-5=9-2-3=15-9-3=18-0-16=18-11-5=12-9-0=7-0-0=14-2-3=18-2-10=17-12-3=4-1-0=15-5-5=17-0-4=18-1-7=17-11-3=9-3-3=10-0-1=13-0-12=18-5-6=15-4-3=15-0-7=17-4-6=20-0-19=6-1-0=15-9-1=13-5-3=13-9-1=20-7-7=7-4-0=12-2-4=19-12-0=13-5-6=17-2-9=4-0-0=13-1-4=20-1-3=20-0-13=20-1-6=16-12-2=18-0-3=12-2-2=14-0-0=19-9-0=11-0-5=13-2-0=7-1-1=20-15-1=17-2-11=8-2-1=16-1-7=20-7-6=5-0-4=20-4-7=13-0-7=14-5-8=15-3-8=12-5-1=17-1-7=6-2-3=19-3-1=18-6-0=15-7-6=6-1-3=17-0-16=10-2-7=12-6-0=15-1-9=20-2-14=12-0-10=11-5-4=13-9-3=15-14-0=12-2-6=11-0-2=12-1-10=19-3-3=19-8-0=17-6-9=18-9-3=19-3-6=15-1-7=14-2-11=18-6-8=12-5-6=12-7-4=20-0-1=19-11-2=11-1-2=19-6-7=13-2-7=13-11-1=19-9-8=19-9-9=16-6-8=20-2-12=17-1-10=6-3-1=9-3-2=13-4-5=4-1-1=19-11-6=13-4-7=20-11-2=10-3-6=11-8-1=19-10-4=3-1-0=20-8-0=19-14-4=18-8-7=9-3-5=18-7-6=10-7-0=11-7-3=16-1-13=20-12-0=18-7-9=12-0-1=8-3-0=17-4-2=7-0-6=14-3-3=14-1-8=9-1-6=16-4-0=20-13-1=13-3-5=18-8-0=19-2-2=17-0-2=13-9-2=18-2-6=13-2-10=20-10-4=17-13-1=20-12-4=12-7-0=12-5-4=15-1-10=3-0-2=13-6-0=18-7-3=13-3-7=11-0-8=6-0-3=14-7-3=18-1-9=7-3-1=9-4-0=10-5-3=15-2-6=15-7-7=16-3-10=15-2-9=13-7-0=10-0-5=16-1-9=16-4-3=14-11-1=17-10-6=11-4-5=15-3-4=12-8-2=9-0-1=15-4-10=20-16-2=15-7-0=10-1-6=11-1-7=8-4-3=16-14-0=7-0-2=13-8-1=18-13-1=15-0-14=20-10-9=18-0-9=20-4-4=12-8-1=19-10-1=9-1-4=19-10-3=18-7-10=17-11-2=17-0-1=15-8-1=19-10-8=5-1-2=14-5-3=10-3-0=12-5-2=8-0-3=11-4-0=12-3-0=19-1-4=16-11-0=19-13-4=20-16-0=17-1-3=6-5-0=13-1-1=14-1-12=5-1-3=19-5-8=18-8-1=11-2-7=17-10-4=18-11-6=19-0-4=16-1-11=8-2-0=20-9-7=14-9-3=19-1-10=19-2-7=15-2-7=12-3-2=6-0-5=11-3-5=20-17-1=16-0-9=20-17-2=13-6-3=18-1-5=14-4-8=5-1-0=18-1-6=12-9-1=9-1-0=12-3-5=17-3-6=18-0-0=17-1-15=3-0-0=12-6-1=18-13-2=20-2-15=17-8-1=11-7-0=17-1-13=12-5-0=15-9-4=14-4-9=9-0-3=11-2-2=19-0-17=12-0-3=20-3-15=20-0-12=14-1-9=12-7-2=15-0-1=20-8-4=11-4-3=8-4-0=20-6-10=14-6-1=9-5-1=12-10-0=15-6-0=10-4-1=20-10-1=17-12-2=15-1-13=17-5-2=19-11-3=13-2-2=18-6-6=19-12-3=7-4-2=10-7-1=18-4-10=11-4-6=16-4-11=14-8-4=9-1-1=18-7-4=7-3-2=14-3-2=11-1-8=17-7-1=10-2-4=12-6-4=18-13-3=10-3-5=14-0-9=17-5-1=10-1-2=11-1-3=6-2-1=10-6-1=15-1-4=16-9-3=19-8-1=15-9-5=9-2-0=19-16-1=15-5-6=20-11-5=5-3-1=14-3-7=9-0-6=16-0-13=20-6-0=20-0-9=13-9-0=20-3-1=17-0-5=13-12-0=17-0-7=14-2-2=20-14-3=10-0-8=4-0-1=7-1-2=6-4-1=7-4-1=20-18-1=16-3-7=8-5-0=9-6-1=17-4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