一年级数学下册口算宝典39.docx
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一年级数学下册口算宝典39
10+10=25-4=19+9-3=40-30-7=
83-20=70+3=70-1-5=84-40+2=
77-10=62+2=59+6-4=73-10+8=
70-50=38-8=41+9-4=90-80-12=
20-10=65+4=49-7-4=90-80-19=
10+40=60-7=53+4-1=62-60+15=
60-50=55+9=88+4-2=74-60+9=
78-60=17+6=44-4-8=67-40+9=
70-30=31-8=34-7-2=90-40-7=
91-10=81+6=51+6-3=90-20-16=
60-20=33+4=88+6-7=70-40+12=
30+10=63-6=75-6-8=66-10+2=
76-60=86-9=32-9-8=72-30+14=
80-60=26+4=58+3-3=63-10+13=
80-30=87+1=80+3-7=65-20+4=
86-40=81-0=81+4-8=77-10+1=
20+20=84-4=78-2-3=81-20+7=
30+30=46+7=14+3-1=70-60+15=
90-70=57-7=24+4-3=90-10-2=
80-10=40-6=86-6-3=40-30-18=
73-30=69-4=22+1-4=63-60+6=
80-20=33-6=62-6-3=90-80-2=
50-10=43+6=35-8-8=75-50+14=
50+10=89+8=27+9-2=70-30+2=
70-60=43+4=61-4-4=87-60+2=
40+40=61+5=58-1-2=90-30-3=
94-20=58+8=30+7-1=70-20-18=
20+30=34+8=68-2-2=90-10-6=
87-40=66+7=25+6-2=63-20+17=
82-50=27-1=29+8-1=70-50+15=
90-10=43+4=80+7-8=74-40+9=
77-10=67+2=63+9-2=20-10+12=
61-50=88+5=20-6-2=63-30+12=
92-20=69+3=24-5-2=83-60+9=
74-10=55-3=76+7-2=70-60+15=
70-10=64+7=63-3-7=90-60-10=
90-80=66+7=30-5-9=40-30-9=
50+40=43+5=29+7-4=72-50+1=
30+40=33-8=23+9-4=69-60+8=
50+20=41+2=59+2-4=70-50-17=
40+30=44+5=12+5-7=80-30+14=
10+20=99-4=51+4-5=83-60+12=
10+20=60+4=81+4-6=80-70+10=
92-20=24+3=90-8-5=90-10+16=
74-20=21+3=34-8-4=82-50+20=
30+10=37-4=83+9-6=69-30+14=
70-10=75-0=14+4-9=40-10-5=
50+40=81-9=14-6-2=70-40+10=
30+40=54+7=44+9-6=76-20+16=
70-60=18-7=22-3-6=90-80+3=
50+10=63-2=47+6-9=60-30-10=
90-70=51+7=23-2-2=90-20-16=
80-70=44+4=37-6-9=66-20+15=
40-20=69-3=85+2-2=90-80-8=
90-80=60+2=64-1-3=70-60-13=
80-40=16+9=42+2-4=50-40+2=
90-30=31-5=49+7-5=70-50+2=
80-60=91-8=34-7-5=78-60+2=
90-20=48-3=73+9-5=67-50+2=
20+40=25-5=52-4-5=70-10+12=
80-10=27-7=37-9-5=63-50+14=
70-40=82+7=35-7-7=80-50-5=
10+10=92-9=78-5-4=80-60-9=
40-10=84-8=51-7-5=78-40+11=
10+10=17+4=56-3-8=70-30+19=
20+40=95-8=56-9-6=70-60-19=
90-40=82-1=55-8-3=62-40+9=
90-20=63-0=40+8-7=82-60+18=
68-60=26+2=45-6-9=75-20+6=
50+40=77+5=50-8-1=40-10-6=
80-50=89+1=34+6-4=81-30+9=
50+10=17-4=70-1-8=70-30-7=
20+40=33+9=31+4-2=90-70+9=
70-60=69+7=62+4-4=80-70+13=
88-50=19-9=70-5-1=74-50+8=
76-50=32-5=88-4-2=75-30+19=
69-50=94-4=90-9-8=90-70-18=
30+20=40+9=74+4-5=65-50+19=
85-50=37+7=56-9-1=70-60-15=
40-20=12+1=13-7-5=90-30+10=
80-30=26-5=56+5-7=75-60+19=
61-40=56+1=60+3-4=89-50+15=
40+40=13-2=76+8-5=90-40-10=
80-60=79-7=51+1-1=89-60+12=
60-50=76-2=51+1-8=62-30+1=
80-20=64-7=41+9-5=61-60+17=
80-70=46+6=31-4-1=69-30+5=
50+30=28+4=76-3-5=60-50-5=
87-20=29-4=58+4-9=87-10+10=
80-50=43-5=72+3-6=60-10-8=
80-70=26+1=25-8-8=71-10+1=
83-40=95-2=20+6-4=70-10-18=
80-70=46-2=24+7-3=90-80+15=
70-30=14+2=88+2-9=70-60+19=
60-50=57-0=23+2-5=30-20-11=
80-60=78+5=46+9-8=66-60+10=
40-30=77+8=71-7-1=76-30+14=
10+40=79+7=80-4-6=90-10+17=
20+10=28-9=54-6-2=65-10+20=
90-10=61-1=58+5-2=84-10+10=
40+20=49-6=79+5-3=70-30+12=
79-50=59+7=47+1-1=50-40+5=
90-80=41+8=67+1-8=64-60+13=
90-80=12+4=28-1-3=69-50+15=
68-50=45+4=42+1-4=80-10-9=
30-10=78+9=52+2-3=90-80+2=
30+10=30-8=24-5-3=73-40+1=
40+40=11-9=27+5-8=90-60-12=
80-60=36+6=51-3-2=40-10-6=
40+10=13-4=47+8-1=81-60+11=
73-10=34-7=75+4-5=68-30+9=
50+30=24-1=23-9-5=64-40+8=
90-70=26-0=79+6-5=50-20+19=
67-50=37+6=63+9-8=60-30+6=
90-80=89-6=24-2-3=78-20+12=
20+20=92-6=11+6-3=89-10+15=
70-50=28+6=59-6-9=70-20+7=
50+40=87+5=21-9-8=72-60+20=
40+30=66+2=89-3-5=90-70+15=
70-60=64-7=47+4-6=65-40+7=
10+40=33-8=62+3-5=70-50-1=
40+10=91-2=54-8-8=86-20+13=
90-70=54-3=31-2-5=70-50-4=
84-50=34-6=32+7-3=83-60+16=
90-60=41+5=38+9-8=80-60-6=
70-20=29-8=84+1-2=90-80-2=
74-30=37-0=90-9-4=68-60+2=
60-50=70+4=85+6-5=74-60+20=
40-20=81-9=16+3-6=74-20+12=
50+20=48+8=35+4-9=20-10-13=
83-30=36-3=27+9-7=65-30+18=
77-20=37-7=24+1-5=60-10+16=
72-50=68-0=64-4-3=75-30+6=
30+40=19+5=41+2-1=70-10-2=
86-30=90-0=59-7-2=60-10-1=
20+30=15+4=26+9-5=80-60-18=
80-10=34-9=90-5-9=84-50+4=
89-60=38+2=74+4-7=70-40+15=
90-70=47-5=45-8-4=90-40+19=
40+10=64+8=74-6-6=69-50+16=
70-40=57+6=65+7-5=63-10+17=
30+20=40-8=20+5-4=78-50+1=
30+30=73-4=45-2-2=70-60-3=
10+30=99-8=24+9-9=68-50+12=
90-40=34-9=76+9-3=68-20+17=
30+20=93-8=81-2-5=90-50-1=
50-20=36-7=75+2-5=70-60+19=
40+30=46-5=54-2-5=80-60+17=
71-20=97-8=44+2-5=84-30+19=
80-10=51-4=67+9-1=50-40+2=
70-60=27-5=78-9-8=80-30-7=
70-40=27+2=79+4-8=90-70+12=
81-40=97-2=39-4-9=90-70+8=
75-20=23+9=58+1-3=72-10+18=
30-20=48-7=25-9-2=80-70+12=
65-60=30+9=39-2-9=66-60+16=
66-20=26-4=13-7-5=71-10+9=
20+10=11+2=49-4-4=40-10-18=
20+20=20-8=60-4-1=84-30+15=
84-60=86-0=45-9-2=20-10-12=
70-50=64+7=77+6-8=77-30+20=
80-70=88+1=32-4-8=30-10-15=
60-50=41-1=39-9-1=76-50+8=
65-10=16-5=69-6-6=90-70-14=
50-30=48-2=82+2-1=68-10+16=
40-20=34+9=61+8-5=82-30+6=
60-40=82-4=73+1-8=71-30+7=
88-10=72-1=40-2-5=74-30+6=
80-40=67-5=85-9-8=80-60-16=
90-20=25+2=58+2-8=83-20+18=
10+10=38+6=49+8-8=70-20-17=
50-20=78+8=13-1-8=83-10+14=
62-20=64+6=79-5-1=67-20+6=
92-30=56-2=16+8-4=82-20+10=
80-70=58+9=81+9-6=90-80-18=
50-30=55-5=75+2-4=79-40+17=
50+10=16+7=51+7-5=90-20+15=
77-30=89+2=86+1-1=90-80+6=
88-10=72+2=72+8-8=40-30-4=
50+20=66-6=12+2-8=81-30+17=
40+10=70+4=65-1-5=83-30+7=
20+20=72+8=31-2-1=64-20+8=
82-60=90+9=51+6-1=86-40+19=
86-30=81+1=44+4-4=61-30+5=
60-20=61+4=30+8-7=60-10+19=
95-20=19+1=58-5-9=80-60+5=
40+40=18-4=14-3-7=90-80-9=
84-10=26-8=48+4-6=90-80+12=
50+10=51-1=71+1-8=80-50-6=
10+10=57-0=73+5-7=80-30+2=
70-40=35+4=56+6-5=80-30-5=
40-10=68+7=26+4-7=62-10+10=
40+40=39+7=73-6-5=84-40+7=
20+10=58+7=13+1-9=74-60+11=
30-10=42+7=78+8-4=30-10-1=
85-20=60+2=78-6-1=90-10+16=
61-60=12-0=62+5-9=80-50-10=
96-60=50-0=83+8-1=60-30+19=
90-60=33-0=60+1-3=76-10+9=
30+40=72-0=55+5-5=88-30+8=
20+10=38-9=18+3-5=90-60+7=
80-40=71-0=68-9-6=60-40-6=
50-40=11+2=30-1-6=70-40+16=
60-30=77+6=52-9-4=50-10+10=
62-30=80+1=89+7-3=82-20+20=
80-10=25+3=77-7-7=76-30+6=
95-10=45-6=84-9-5=50-30-3=
73-40=13+1=53+5-3=90-70+6=
90-80=40+5=36+2-7=80-70+2=
82-40=48+8=75+4-2=89-30+4=
20+30=50+2=46-5-4=76-30+6=
20+30=64-5=17-6-6=78-20+6=
69-10=88+2=52-2-5=75-20+17=
10+10=93-1=65+1-9=78-30+6=
40+40=71-7=44-7-8=90-50+18=
93-20=51+7=11-8-8=85-30+8=
87-20=32+6=60+4-8=77-10+15=
20+30=82+6=29-9-7=60-50-11=
70-10=43-7=55+3-7=50-30+13=
80-70=82+5=48-4-4=80-70-18=
61-60=88-9=73+4-9=61-30+12=
75-20=93-8=35-7-4=80-50+13=
30+40=37-8=36+2-2=63-60+4=
97-60=44+5=23+3-2=90-80-17=
50+20=70+9=65+6-8=66-30+5=
10+10=29-6=60-3-1=71-10+18=
90-70=81-2=64-4-1=89-20+4=
79-30=76-2=83-4-2=90-80-15=
40+10=11-8=19+7-3=61-10+5=
90-50=28-8=45-4-8=80-70+14=
99-60=73-8=89-8-4=80-20-19=
86-60=57+4=12+7-1=70-40-12=
90-60=70-0=83-3-7=80-70-7=
30+20=21-0=63-3-5=90-50+15=
40+30=30+9=71+1-4=78-50+7=
50-30=67+2=59+4-5=79-30+4=
50+40=82-7=80-1-1=80-20+14=
70-10=22-7=66+8-5=90-80-7=
90-60=39+1=54-8-9=75-30+20=
65-60=57-7=25-9-9=67-10+18=
50+10=84+2=76+3-5=85-20+7=
10+40=40+7=83-8-5=83-10+17=
30+20=10+3=22-7-7=70-50+5=
70-10=44+1=54-9-6=70-10-14=
90-30=52+5=34+9-7=82-50+19=
61-10=78-8=29+1-8=80-70+12=
80-60=84-8=17-7-4=70-60+16=
90-40=28-3=83-1-9=63-30+4=
40-30=88-0=59+3-2=90-80-7=
71-50=21+9=57-1-2=80-10+4=
97-60=88+3=61+5-4=61-50+11=
90-70=83+3=49+9-5=82-30+17=
50-40=63+5=60-2-2=70-40+1=
80-60=72+1=47+3-3=70-40+11=
30-20=77+5=89+7-2=87-40+20=
80-60=70-8=12+8-6=63-40+13=
84-20=64-5=89+2-8=90-70-13=
10+30=68-8=32+3-7=72-60+15=
40-20=44+6=78+8-3=20-10-18=
40+30=18-2=59-1-9=80-10+7=
30+30=48-6=18-7-5=87-30+5=
82-40=59-3=30-9-7=81-60+15=
90-80=81-6=58-8-1=90-60+16=
70-40=34+4=14+4-6=70-60-1=
40+30=37-8=75-4-4=70-10+3=
50+30=67-8=33-2-2=70-40+3=
66-30=63+7=17-2-5=90-70-5=
20+20=13-2=21-1-8=70-50+12=
40+10=95-3=25+7-1=72-50+8=
10+20=90-5=77-1-2=80-10+5=
30+30=58+2=43-1-2=82-50+12=
80-40=91-0=27+6-3=87-50+18=
20+40=58-3=11-5-6=20-10+12=
85-30=51+9=38-8-8=70-40-11=
70-50=76+8=72-7-9=70-20+10=
50+10=83-4=80-8-7=90-60-6=
97-10=35-8=40-9-2=80-70+13=
90-80=73-3=59-3-8=40-10+1=
40+20=33+9=11-5-6=79-40+5=
10+10=30-2=79+2-2=90-60-16=
70-40=33-4=86+6-3=90-80+12=
90-50=64-1=44-1-2=80-30+6=
90-50=58-1=31-4-4=80-40-17=
79-40=62-7=59+4-1=81-10+10=
10+30=90-0=60+5-7=60-30+2=
20+20=89+1=32+3-6=72-60+10=
50-40=49+9=55+9-7=70-50-17=
20+40=11+2=46-2-8=88-30+3=
97-30=61+1=50-8-9=30-20-7=