文档介绍:口算
25+19=
28+20=
39-18=
25+24=
48-19=
19+22=
37+11=
29-14=
22+11=
38+12=
20+19=
41+仃=
38-26=
455=44-31=59+23=16-14=30+41=67+12=65-21=23+24=
93-38=73+23=26=57+19=39+9=29=
42=28=58+10=19=18+56=32=20+26=34-13=27+34=67=5+48=43=92-63=48-47=53+22=16+70=37=57=68-44=71-17=89+15=22+38=
27-14=29+30=
83-31=68=
27+70=24+49=43=23=100-28=37+47=42+22=48-17=17+21=50+18=
63+10=38=
45=72+15=2+75=95-75=17+31=72+10=70+26=
39+45=45-35=48+27=1+35=25=43+11=27=25+58=47-36=61-55=60+26=29+71=33=94-39=41-11=68-16=
59-35=81+18=24-13=
78+4=16=26+50=
61=29+24=29=31-20=23+41=
68+16=50+23=49+25=
15+91=15+77=
32+61=12+17=68+20=47-29=86-73=51-49=
32-11=83=39-13=52=74-49=69-29=83+7=72+7=21+55=71+25=20+55=
44=83-22=28=
66+34=29+68=
50+20=38=92-58=11+87=73=
19+57=62=37=69+31=55-54=37=84-50=13+84=
13-4=16+71=94-81=51-11=14=38=43+23=62+13=24=56+14=81+11=19+10=96-41=25+10=94-54=2+81=43+53=18+26=34=62-13=68=17+46=39+55=33=94-47=11=50=10=65+12=43+41=20+33=49=19+76=86=65+12=80+11=20+20=65+24=41+20=
45+40=49+49=25+45=84-71=66=
80-70=33+25=68=31+27=71=51-23=99-14=
4+76=20+53=6=
9+23=52+28=37+47=
48=
9+16=4+35=12+2=16+68=46-14=33=50-42=73+15=49+30=
43-27=20+75=99-29=19+56=33+55=35+46=34+13=13=99-22=63=49+31=91+2=92-40=75+13=45=21+25=27+34=83-35=71-58=90+3=68-52=43-30=
80-54=79-56=36+64=17+35=34+8=59-36=59-27=67+19=20+16=64+17=37+55=78+11=17+43=61-25=15=27+68=
61=89=16+84=45+55=68+15=45+17=
25=79+8=59+37=
24+54=68-9=57+15=34=90-33=27+45=50+11=
94-20=34+24=75=
54-5=45+36=16+57=31+28=48+51=51+25=8+81=79+6=41+39=20=14+12=79=80-20=38-15=55-39=20+22=33-23=47-22=69-36=10+3=72-30=33+30=
69-23=70=79-68=45+21=11-6=23+36=23+28=90+9=25+75=10+34=
84+3=57+31=79-65=84-38=31=60+22=50+9=6=68-57=90=15+83=81+14=16+43=58+13=92+3=39=39=62+12=
83-35=27-12=35+27=
65-17=
46=45+45=34+65=72-54=41-21=35+53=60+16=15-11=90-5=81+2=18+3=
71-69=65=
32+65=19+12=48+18=35=74+24=87-16=93-13=41=47=38-20=14=
57+5=
50-24=68-26=42+49=56=86+12=10=48-16=42=39+28=14+13=82+6=55-21=98-25=