概要：75-20= 71+10= 21-20= 96-90= 37-10=22-20= 62+30= 48+20= 74-20= 92-20=75-50= 31+30= 76-50= 12+10= 83-10=81-30= 16-10= 37-10= 50-40= 73-70=63+10= 15+10= 31-30= 96-20= 69-30=98-40= 72+10= 92-70= 44-30= 78-30=77-10= 79-20= 88-30= 62-30= 79-10=32+30= 80-70=
泉州市小学一年级数学计算题习题,标签：数学学习方法,小学数学教学案例,http://www.99youjiao.com
75-20= 71+10= 21-20= 96-90= 37-10=
22-20= 62+30= 48+20= 74-20= 92-20=
75-50= 31+30= 76-50= 12+10= 83-10=
81-30= 16-10= 37-10= 50-40= 73-70=
63+10= 15+10= 31-30= 96-20= 69-30=
98-40= 72+10= 92-70= 44-30= 78-30=
77-10= 79-20= 88-30= 62-30= 79-10=
32+30= 80-70= 43+40= 32-30= 93-70=
65-40= 36+10= 97-70= 29+20= 63-40=
17+40= 99-10= 76-70= 88-50= 32+6=
23+6= 64+5= 87+0= 67-7= 97+1=
59+1= 79-5= 77-2= 63+5= 71+8=
57+6= 94+8= 16+6= 65+8= 98+8=
24+8= 84+9= 47+6= 89+9= 53+8=
65+6= 65+7= 48+8= 44+7= 76+9=
59+9= 57+7= 72+9= 46+6= 56+9=
83-9= 17-8= 75-7= 20-9= 57-9=
71-2= 90-2= 63-8= 85-6= 32-7=
42-7= 42-9= 40-8= 46-9= 70-8=
55-9= 80-3= 30-1= 62-7= 31-8=
64+30= 53+10= 37-10= 55-40= 22-20=
84-70= 76-30= 92-20= 65-20=
89-80= 87-20= 64+10= 18+50= 63-20=
87+10= 30-10= 62-30= 80-30= 83-20=
19+20= 81-20= 83-70= 69-10= 80-20=
86-70= 43+20= 10+50= 96-90= 16+20=
56-20= 35+20= 90-80= 47-10= 82-10=
66-50= 47+20= 91-70= 19-10= 76-10=
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