19道一年级口算题
12-8=57+3=62+30=52-20+9=
6+56=8+8=13-6=86―6―7=
18+9=86-40=20+50=8+53+7=
68-5=23-7=70-6=43+40-5=
25+8=5+29=72-8=65-50+17=
55-3=52+30=75-7=6+80-9=
32+43=63-40=35+5=45―8―9=
55-8=38+9=6+47=50-30+78=
43-4=7+33=27-9=34+2+8=
56+3=22+55=81-9=20-7+40=
15-7=100-30=66+9=8+40-3=
94-6=38+4=18+3=51―7―8=
68+5=63-20=39+5=()+34=40
45-9=7+64=42+4=56-()=12
56+7=36+3=11-3=45+()=66
58+36=87-59=75+27=68-19=
38+59=78-49=67+25=57-38=
46+46=64-57=29+47=67-59=
16+67=54-48=54+46=71-65=
54+36=48-39=49+49=91-85=
36+14=25+41=79-64=19+21=
