一年级上册口算题大全：20以内连减

一年级上册口算题大全：20以内连减！

11-6-5=          6-1-0=          17-7-8=         20-3-6=

12-5-4=          17-6-1=         9-4-4=          16-13-1=

19-7-11=         18-13-4=        20-12-5=        15-2-8=

5-3-0=           18-5-8=         16-6-7=         10-1-8=

7-4-3=           13-9-3=         19-4-6=         12-9-1=