30以内连加连减知识分享.doc

30以内连加连减

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15+6+3= 12+3+8= 5+6+20= 12+6+10=
5+6+18= 6+4+13= 4+8+20= 12+16+1=
9+10+7= 6+14+5= 8+5+17= 12+13+3=
7+5+16= 5+7+11= 3+ 7+8= 13+7+6=
11+13+5= 9+1+18= 5+3+10= 16+2+5=
14+11+1= 13+4+5= 2+9+16= 9+20+1=
16+8+2= 5+8+3= 2+16+8= 6+9+14=
12+14+3= 20+1+5= 22+3+4= 25+1+2=
10+1+6= 12+5+7= 21+6+2= 17+5+3=
15+12+3= 14+12+3= 11+6+7= 12+8+6=
16+3+5= 14+7+8= 10+6+8= 5+14+2=
26-9-11= 30-8-12= 19-6-7= 18-5-7=
26-11-8= 29-12-13= 28-15-6= 29-8-15=
28-19-6= 27-13-14= 29-19-6= 26-16-5=
25-14-6= 29-7-13= 27-25-1= 26-24-2=
22-15-4= 25-21-3= 26-11-14= 24-14-5=
26-14-9= 26-15-7= 25-7-11= 28-15-6=
21-6-9= 26-8-13= 27-18-3= 25-6-14=
26-14-5= 28-14-6= 29-16-8= 26-18-2=
22-14-3= 24-14-5= 26-4-18= 29-16-8=
25-11-14= 24-13-4= 27-13-6= 23-13-6=
23-19-2= 29-19-4= 29-16-7= 24-15-8=
29-18+13= 21+9-19= 2+28-9=
29-6+3= 15+14-8= 16+9-7=
25+4-18= 27-13+11= 28-19+15=
27-16+7= 21+8-17= 11+17-8=
14+15-9= 16+13-14= 18+9-16=
26-19+15= 29-17+15= 28-14+13=
25+4-20= 12+17-6= 15+14-21=
18+9-17= 16+13-28= 29-1-7=
26-19-18= 27-25+21= 24-6+5=
25+4-23= 29-25+21= 12+17-22=
24-21+19= 21+9-18= 26-14+13=
25+4-18= 13+14-5= 2+22+1=
3+15+6= 22-16+8= 21-15+17=
18+3+5= 11+18-20= 18+9-21=
11+13-14= 12+14-13= 13+14-15=
29-19+8= 26-15+7= 27-20+20=
20-5+15= 22-11+13= 28-9+7=
26+4-13= 27-25+5= 24-20+13=
20+6-18= 15-4+10= 26-7+5=
28-16+13= 9+10+11= 18+8-9=
16+5+8= 14+15-21= 21-9+8=
24-18+16= 29-17+13= 15+14-26=
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