口算练习(二)——100以内加减法速算
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39+10= 22+9= 25-9= 53-9= 32+37= 28+14=
20+66= 40+32= 24-7= 7+28= 23+62= 42+69=
98-40= 88-8= 32-8= 53-9= 38-23= 68+28=
3+44= 8+48= 33-6= 62-8= 53+44= 38+44=
86-3= 37-30= 43-7= 58+8= 45-35= 56-38=
32+6= 55+5= 21-2= 63-7= 52+26= 35+46=
48+7= 4+77= 50-9= 23+9= 48-27= 48-39=
42+8= 22+8= 47+4= 77-7= 80-8= 42-17=
28+4= 18+70= 47-4= 33-8= 67+4= 28+26=
39-5= 59-5= 47+9= 40-6= 39-15= 31-25=
33+10= 22+9= 25-9= 53-9= 32+37= 28+14=
20+66= 40+32= 24-7= 7+28= 23+62= 42+69=
98-40= 88-8= 32-8= 53-9= 38-23= 68+28=
3+44= 8+48= 33-6= 62-8= 53+44= 38+44=
86-3= 37-30= 43-7= 58+8= 45-35= 56-38=
32+6= 55+5= 21-2= 63-7= 52+26= 35+46=
48+7= 4+77= 50-9= 23+9= 48-27= 48-39=
42+8= 22+8= 47+4= 77-7= 80-8= 42-17=
28+4= 18+70= 47-4= 33-8= 67+4= 28+26=
39-5= 59-5= 47+9= 40-6= 39-15= 31-25=