文档介绍：The final edition was revised on December 14th, 2020.
一年级以内加减法口算练习题
50以内加减法口算练习题(一)
25+19= 28+20= 39 The final edition was revised on December 14th, 2020.
一年级以内加减法口算练习题
50以内加减法口算练习题(一)
25+19= 28+20= 39-18= 40-17= 25+24= 22+11=
48-19= 19+22= 37+11= 29-14= 44-20= 38+12=
20+19= 41+7= 38+6= 49-9= 48-11= 32+10= 3+40= 6+24= 20+19= 11+19= 11+34= 10+29= 10+36= 1+16= 1+36= 1+44= 49-8= 48-17=
40+3= 40+9= 43-21= 44-17= 40+2= 36+8= 34+11= 36-18= 36+6= 37+9= 38-14= 34+9= 34-7= 34+11= 34+4= 35+15= 35-6= 30+20= 30-7= 30+13=
50以内加减法口算练习题(二)
21+18= 21+27= 21+19= 21-11= 19-19= 19+20= 17+26= 17+30= 17+33= 16+40= 16+39= 16-14= 15+34= 15+29= 19+28= 11+38= 49-40= 49-9= 49+1= 48-41= 48-19= 48-17= 48-23= 47+2= 47+0= 47-13= 47-9= 46+3= 46-18= 46-11=
46+0= 45+4= 45-3= 45+1= 45-22= 44+6= 44+1= 44-16= 44-24= 44-30= 44-37= 44-25= 44+3= 43-29= 43+4= 42-17= 42+8= 42-0= 42-41= 42-37=
50以内加减法口算练习题(三)
41+6= 41-11= 41-19= 41-0= 41+13= 36+11+1=
40+10= 40+8= 40-30= 40-21= 40-39= 36-3-12= 39-1= 39+11= 39+5= 38+11= 38+9= 37+0+11= 38-9= 38+5= 37-17= 37-6= 37+12= 37-3-9= 36+9= 36-4= 36+14= 36+11=