文档介绍：50以内加减法口算练习题(20)
25+19= 28+26= 35-18= 40-17=
25+24= 44-20= 38+6= 56+24=
48-19= 19+22= 37+14= 29-14=
22+11= 38+12= 20+19= 41+7=
49-9= 48-11= 32+10= 53+40=
20+19= 11+19= 11+34= 10+29=
10+36= 42-17= 43+27= 37+19=
17+16= 55+36= 21+44= 46-18=
40+3= 43+9= 43-21= 44-17=
36+8= 34+11= 36-18= 36+66=
38-14= 34+9= 34-7= 34+11=
34+47= 35+16= 19-19= 17+33=
35+15= 35-26= 30+20= 30-17=
26+18= 23+27= 24+19= 21-11=
19+20= 19+28= 17+26= 17+30=
16+40= 16+39= 16-14= 15+34=
15+29= 48-41= 47+16= 46-11=
11+38= 40-29= 46-19= 49+23=
48-19= 48-17= 48-23= 47+2=
47-13= 47-9= 46+3= 46-18=
46+15= 45+24= 45-37= 45+18=
45-22= 44-30= 43-28= 42-37=
44+17= 44+51= 44-16= 44-24=
44-37= 44-25= 44+37= 43-29=
35-19= 35-28= 35+28= 34+18=
33+13= 33+17= 33+10+2= 33-11=
33-9= 32+15= 31-5= 29+21=
32+11= 32+17= 32-12= 32-21=
31+18= 30-11= 31+9= 31-19=
36+25= 30-19= 36+16= 30+18=
29-18=