一年级上册20以连减口算题2400道题
19-12-0=20-11-3=16-2-7=18-1-3=8-1-6=16-7-3=13-0-2=14-1-0=20-10-1=9-3-5=13-7-5=20-12-2=11-3-3=8-1-1=13-8-3=9-7-1=20-10-9=9-1-1=18-0-9=6-0-1=5-0-1=13-0-0=4-2-1=16-1-14=10-5-2=14-8-5=20-2-13=17-0-16=16-3-10=12-6-2=6-4-1=12-1-8=14-1-7=10-2-1=19-3-1=20-18-1=9-7-0=8-4-0=13-2-9=15-2-11=20-0-9=13-5-6=9-2-5=18-12-1=13-6-1=19-8-5=14-7-1=10-1-0=18-12-5=18-0-16=17-13-1=18-9-7=10-7-0=14-5-4=18-16-1=20-4-7=15-8-2=18-6-6=14-3-6=5-4-0=16-2-12=6-1-4=13-0-12=11-7-0=19-10-1=18-9-8=13-11-1=14-12-0=18-17-0=19-10-8=12-2-4=19-10-5=8-1-4=12-3-5=13-8-1=14-8-1=16-6-3=8-3-1=14-2-3=15-2-6=15-2-7=17-7-1=19-8-10=19-10-7=17-14-1=19-7-7=11-5-1=19-15-1=16-10-1=12-4-5=9-6-0=12-2-6=16-2-9=11-0-8=8-6-0=16-10-4=18-7-3=6-2-2=12-1-7=12-10-0=19-0-15=17-0-6=17-12-4=19-14-3=4-1-2=16-3-8=17-9-4=10-0-1=18-2-1=13-7-2=16-2-4=8-4-2=11-2-6=17-2-11=19-3-3=15-8-4=13-1-4=17-0-2=15-1-7=11-8-1=13-1-7=18-8-9=17-5-3=8-0-2=20-4-4=11-6-0=12-7-0=19-2-0=18-10-2=20-8-9=4-0-1=18-11-6=14-5-6=6-1-3=18-7-6=18-0-13=15-1-6=14-4-1=12-5-1=11-6-2=19-14-0=20-16-1=13-10-1=20-14-2=9-3-3=20-6-13=20-12-1=14-4-0=20-11-4=20-1-3=20-1-12=11-0-5=18-0-15=6-3-2=14-7-2=13-5-4=5-1-0=10-0-0=11-2-8=11-8-0=18-9-0=20-7-11=12-9-0=16-13-0=11-6-4=15-6-1=20-9-7=13-2-5=15-4-10=18-9-3=16-3-4=15-13-0=15-0-3=10-2-2=15-8-1=13-6-5=16-7-8=12-8-1=9-1-0=15-0-4=20-8-5=11-1-2=5-0-2=16-6-5=15-10-3=19-15-3=15-9-3=14-0-8=10-0-7=16-13-2=13-5-7=15-5-2=20-8-0=15-6-7=16-11-2=20-10-6=12-9-1=16-6-0=18-14-1=20-14-1=18-15-1=11-2-2=11-0-3=13-6-3=15-9-2=7-3-2=14-6-0=19-7-9=5-2-0=19-0-17=14-4-9=12-0-11=7-5-1=13-10-2=14-11-2=16-13-1=14-1-3=20-6-0=9-6-2=17-2-3=10-8-1=17-0-7=17-2-0=17-8-8=10-6-1=10-3-6=19-6-7=9-1-6=5-3-0=16-1-4=13-8-0=19-1-12=13-10-0=18-10-7=16-0-9=15-3-0=12-10-1=18-13-0=7-2-3=14-0-0=18-2-6=18-14-0=17-6-9=12-0-2=9-3-2=18-7-1=15-8-6=14-2-6=15-7-6=17-3-9=20-9-3=12-0-3=20-18-0=13-2-2=20-2-14=17-12-1=15-8-5=20-15-3=19-3-12=10-2-3=12-7-2=19-11-3=12-1-0=6-0-2=15-11-1=17-10-4=18-15-2=18-4-7=19-9-0=12-7-3=13-7-0=16-0-0=18-6-10=13-1-9=19-11-6=12-1-10=18-8-0=19-17-1=19-16-1=12-8-3=10-1-7=12-1-5=15-1-9=14-5-8=15-6-3=7-4-1=18-8-7=8-5-0=14-3-3=16-15-0=17-9-0=19-10-3=13-6-0=14-2-11=13-5-3=19-1-9=17-1-15=20-2-1=20-0-19=14-12-1=14-5-2=11-5-2=9-5-1=13-0-7=6-1-2=17-14-0=20-4-11=20-0-12=9-0-2=18-13-4=13-12-0=13-2-3=11-4-3=16-10-5=11-2-5=15-6-4=18-0-3=14-5-3=18-10-4=11-3-6=15-6-0=5-2-1=19-9-7=14-3-4=17-2-9=13-6-6=17-2-1=6-5-0=17-4-8=20-12-0=16-11-4=8-2-3=15-0-10=12-9-2=12-6-1=19-13-2=19-0-4=18-5-3=19-14-4=17-7-6=9-5-2=8-0-3=17-1-7=7-1-3=16-0-12=20-3-1=19-13-0=14-8-3=17-16-0=19-13-4=12-0-1=15-0-2=7-3-3=17-1-5=5-0-3=13-2-4=14-5-7=16-14-1=11-10-0=17-8-7=4-0-0=14-6-1=12-5-5=18-1-7=11-8-2=7-4-2=7-0-0=14-10-2=7-1-2=18-7-10=8-3-2=15-8-0=8-2-4=17-5-6=11-9-1=2-0-0=20-3-4=3-1-1=17-0-4=9-4-3=17-0-3=17-7-7=17-4-2=15-3-8=12-0-10=10-5-3=8-2-1=15-12-1=18-5-11=15-6-8=10-2-7=20-9-0=6-2-0=18-11-5=7-2-1=16-0-14=4-2-0=8-3-0=17-8-3=17-8-5=8-3-3=11-4-4=11-4-1=19-11-2=17-11-2=7-2-4=7-1-4=15-9-1=6-4-0=17-10-6=6-2-1=12-2-9=5-1-3=17-4-12=18-2-10=14-4-4=19-2-6=12-3-2=3-2-0=19-1-3=14-7-0=13-6-4=20-4-15=18-13-2=10-0-8=17-11-4=15-0-14=9-0-5=17-2-7=16-2-11=19-12-4=14-11-0=17-6-0=6-2-3=20-1-6=8-3-4=19-4-2=13-7-1=7-0-2=16-0-13=9-0-7=18-3-1=20-16-0=17-12-3=18-0-0=16-5-9=15-0-7=17-3-3=17-3-6=14-6-2=14-2-2=20-6-10=10-0-5=10-4-0=15-2-8=6-0-4=17-8-1=8-2-0=9-2-0=18-1-1=19-12-1=12-1-9=14-1-6=12-2-1=10-3-1=20-1-15=6-1-0=12-6-5=19-10-4=16-1-7=9-4-1=19-17-0=14-0-6=11-1-7=19-9-4=8-0-1=10-0-2=7-1-0=18-16-0=16-12-0=10-8-0=17-1-13=16-9-1=19-1-4=19-11-1=3-1-0=20-13-1=5-3-1=13-4-2=18-2-14=19-1-10=11-7-3=9-2-3=17-1-3=20-16-2=10-9-0=12-4-1=19-8-9=16-2-10=20-11-1=2-0-1=11-1-5=7-2-2=20-11-6=15-5-0=18-5-10=20-13-2=13-7-3=10-3-0=16-10-2=17-5-1=20-7-6=20-0-13=20-10-4=11-0-4=6-0-3=9-2-4=13-2-0=10-6-3=14-13-0=14-10-1=13-4-7=3-0-2=19-3-7=17-4-7=15-9-5=17-3-10=9-5-0=11-6-1=7-0-5=10-4-5=17-14-2=18-4-0=13-8-4=15-7-0=15-5-5=12-6-4=18-6-9=4-0-3=12-5-2=7-0-1=17-1-1=12-0-6=17-5-0=17-2-6=19-16-2=13-2-8=18-4-6=14-9-2=15-9-4=15-10-2=9-1-4=14-4-6=20-15-4=17-11-0=16-11-0=12-3-4=8-5-2=13-11-0=11-0-9=18-9-4=10-3-3=20-14-3=19-5-8=20-8-4=12-5-6=19-3-6=12-3-8=14-8-0=14-8-4=17-0-5=16-10-3=20-3-15=16-14-0=18-6-4=20-12-4=13-9-3=20-19-0=20-1-2=13-4-5=19-7-10=12-8-2=9-0-3=14-4-5=20-9-2=17-2-14=15-14-0=5-2-2=13-3-7=14-0-13=13-9-2=12-6-3=12-4-6=14-0-12=20-17-1=13-6-2=17-0-1=19-14-1=11-2-3=9-3-1=17-9-1=18-5-6=20-2-15=10-5-0=20-4-8=20-5-2=12-2-5=14-4-3=19-4-9=16-1-11=20-5-1=13-3-4=9-3-4=16-4-0=13-2-7=9-1-2=13-8-2=11-4-6=11-1-8=20-0-18=9-2-6=7-5-0=8-0-7=7-4-0=7-1-1=15-3-4=10-4-2=14-9-3=6-3-1=15-11-2=18-4-13=18-14-3=19-10-0=5-1-1=10-7-1=16-8-2=10-1-6=17-13-0=18-13-1=8-5-1=1-0-0=17-7-5=6-0-5=6-0-0=11-3-7=18-7-4=16-1-10=20-5-14=18-1-6=18-10-6=17-1-11=18-13-3=13-4-0=14-3-1=14-6-4=7-2-0=20-15-1=19-9-5=15-12-2=15-0-1=19-2-2=6-3-0=17-6-2=8-0-6=13-1-2=15-5-7=13-3-3=17-10-3=15-3-10=10-2-4=12-7-4=12-8-0=12-6-0=13-1-5=18-6-8=8-1-0=11-5-4=15-11-0=14-6-3=20-2-2=10-3-4=19-11-5=15-4-6=19-8-1=12-0-9=11-6-3=18-2-0=17-0-14=11-7-1=18-6-3=12-5-4=19-0-14=10-3-5=13-9-1=20-2-12=11-0-2=11-5-5=18-9-2=15-2-9=19-2-4=6-1-1=7-3-1=9-4-2=9-0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