资源描述
一年级口算
62-20= 46+30= 35+64= 73-30= 53-30=
71-40= 48+31= 25+32= 44-40= 72-40=
16+23= 95-30= 34+23= 77-10= 55+31=
12+62= 49+2= 62-3= 56+43= 22+78=
75-40= 23+72= 75-60= 67+33= 82-7=
73-50= 54-30= 78-10= 65+7= 35+55=
48+25= 54+43= 72-10= 56-10= 45+36=
76-60= 25+34= 28+60= 70-50= 64+33=
81+3= 16+48= 52-40= 32-3= 29+50=
45+42= 93-40= 60-40= 46-10= 35+35=
63-9= 87-20= 31+60= 13+41= 25+50=
76-22= 52-24 = 88-60= 76-7= 28+32=
45+7= 12+86= 19+51= 75-60= 46+25=
19+27= 93-30= 76-40= 87-60= 35+32=
76-30= 52+39= 84-80= 38-5= 50+28=
67-50= 15+75= 48-10= 32+27= 45+45=
4+7+9= 15-10+12= 9+4+2= 18-8+9= 17-10+9= 16+2-9= 7+9-8= 10+6-9=
20-16+9= 19-8-3= 15-9+6= 5+9+3=
11+7+2= 5+7+4= 17-8+4= 16-10-5=
20-17+8= 8+7-10= 8+9-6= 15+3-14=
展开阅读全文