一年级数学下册口算宝典169.docx
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一年级数学下册口算宝典169.docx
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一年级数学下册口算宝典169
40+40=36+5=73-2-2=80-40+5=
30-20=93-1=59-2-9=70-10-7=
95-10=12-7=83+6-4=30-10+8=
73-60=72-8=38+9-1=87-40+14=
80-60=44-2=83-3-6=87-20+6=
96-60=12-7=62-2-8=50-20-17=
92-40=51+2=36+1-2=50-30+13=
80-50=68+7=81+7-6=30-10+6=
60-50=21+4=26+4-9=30-20+5=
30+40=23-6=26+1-4=73-10+13=
81-10=90+6=37+4-2=79-40+1=
20+40=69+7=27-2-8=90-70-17=
80-70=71+1=28+1-8=60-30-6=
73-10=44+3=82+7-8=85-60+14=
50+40=12+3=90+8-2=67-30+6=
30+20=16+3=16+4-9=64-20+4=
70-10=82-6=23+7-1=65-50+15=
30+30=65+5=29+8-4=40-10+16=
80-20=77-4=38-8-7=90-40-18=
65-20=44-9=80-4-7=85-50+15=
20+40=36+9=48-3-2=81-10+16=
61-40=53-3=53-2-3=30-20-5=
30-10=55+8=47+8-3=60-20-9=
10+40=97-5=74+7-7=50-10-6=
90-60=81-4=88-4-6=40-30-15=
62-30=87-1=14-3-1=75-10+17=
40+10=78+1=45+2-7=73-60+3=
10+20=79+9=79+8-8=77-30+4=
92-40=39+7=25+6-7=60-30-2=
10+20=51-0=15+1-4=80-40+14=
82-40=71-5=70+4-7=90-40-10=
50+20=78+7=40-3-1=80-50-13=
60-50=20+2=71-2-3=78-30+9=
40+40=74+5=14-2-5=60-40-1=
69-20=48-2=54+5-3=80-30+19=
70-40=24-6=63+6-9=90-50-2=
95-60=20+1=38+7-4=50-30-4=
30+10=16-8=22-4-6=70-50-11=
84-30=45-3=61+8-3=90-80-2=
90-50=55-1=20+6-2=61-40+4=
50+10=14-1=74+5-9=30-20-13=
61-60=78-9=12+4-7=61-50+12=
30+10=12-5=40+5-6=70-10+1=
73-30=57-1=53-4-8=61-40+9=
40+40=87-8=75+7-5=80-60-17=
30+30=70-0=85-6-9=90-60-19=
80-60=96-2=37-2-7=62-20+14=
63-50=10+7=42+2-8=61-30+20=
75-10=21-8=31+7-9=70-60-15=
20+30=71+9=59-8-2=90-80+10=
80-30=35-8=49+7-6=69-50+18=
40+30=33-9=25-2-5=72-20+5=
20+10=89+1=33+9-1=89-60+12=
10+10=72+4=78-1-3=88-30+9=
61-20=63-6=56-7-9=86-50+2=
10+40=90+5=82-2-3=80-40+2=
40+20=11-0=38+6-5=89-20+15=
80-70=46+8=44-9-9=82-60+9=
30+30=67+7=54+7-1=70-60+10=
77-20=48-7=58+6-1=64-40+6=
10+20=65-8=69+6-9=90-60-12=
30+30=94-8=51+8-9=69-30+1=
88-50=85+1=49-4-7=60-50+16=
73-50=88-4=73-4-8=90-50+15=
50-20=23-1=30-1-7=61-30+11=
40+40=26+1=74+1-4=73-40+4=
84-10=39-6=41+9-1=60-40-2=
50-40=34+8=74+7-2=77-10+14=
65-40=36-3=56+8-9=66-10+6=
91-20=42+2=84+4-1=89-30+13=
70-60=82+3=53+1-1=87-50+5=
10+30=32-2=90+1-5=89-50+15=
90-70=24+8=30+3-9=80-70-19=
30+10=19-7=80+4-8=90-80+13=
10+10=29-0=86-1-6=70-50+17=
40-10=27+7=73+7-5=69-60+8=
74-60=78-0=60+7-1=80-20+8=
10+10=46+8=34+7-8=89-20+11=
30+20=51+7=39+4-9=30-20-8=
96-30=58+6=16-5-6=90-60+8=
96-10=78-7=74+4-7=77-40+18=
50+10=52-9=68+5-6=70-10+3=
63-20=12+6=63-6-1=88-60+18=
10+40=87+8=79+3-8=80-70+9=
69-30=20-0=10+3-6=66-20+9=
20+20=60+8=67-8-6=90-60+11=
20+20=72-5=43+4-9=69-20+3=
80-60=29-9=47+8-7=82-60+7=
10+30=38+1=68-1-8=70-20+18=
60-30=13-3=32-9-1=60-20-4=
30+20=79-1=88-4-3=50-40-12=
50-30=75-1=84-5-1=70-40+5=
74-40=83+8=64+6-9=70-50-5=
90-80=75-4=78+4-9=76-60+4=
20-10=45-6=81-4-2=90-80-6=
70-50=52+9=52+7-7=90-60-8=
20+10=86-9=31-8-8=72-20+8=
80-60=76-0=58-1-3=90-40-18=
90-80=51-6=29-2-4=30-20-2=
30+40=70+8=38-2-3=87-40+17=
40+30=88-5=19-1-5=90-30+16=
20+30=38-7=84+1-6=70-50+8=
90-80=28-9=54-1-5=86-40+11=
90-40=64+3=81-4-5=80-70+3=
30-10=38+3=49+9-2=70-60+8=
94-40=58+2=62+4-7=78-50+5=
88-40=54-0=87+9-5=81-30+2=
20+20=27+9=15-9-7=80-50+6=
10+30=88-8=23-9-3=20-10+15=
20+10=42-9=70-3-7=86-10+19=
97-10=40+6=89-3-7=90-70-18=
30+10=68+3=15-7-1=82-60+20=
67-40=24-4=34+2-4=63-10+19=
90-40=28-8=24-1-6=61-40+2=
50-10=77+8=25-3-2=40-10+18=
50+20=46-2=44+3-8=50-20-4=
80-60=63+8=65+1-5=90-20+19=
10+20=29-3=24-7-3=74-30+15=
50+40=63+5=77-6-1=74-50+18=
20+40=52+2=58-7-3=90-30-17=
20+10=12+6=31+6-4=66-50+9=
90-50=42-4=83+3-9=73-40+17=
83-20=18+2=29+4-7=80-50-1=
80-50=53-1=15+7-5=74-20+19=
80-70=57-8=58+1-5=70-60+17=
30+40=16-6=78-7-3=80-60+6=
70-30=23+8=68+7-6=60-20-10=
20+30=28+5=69+5-7=79-40+13=
50+30=37-4=31-8-8=70-40+15=
50+30=74+7=73+6-2=70-50-17=
88-60=55+5=49-2-2=65-60+6=
70-20=55+5=73-6-6=90-60+6=
91-60=42+3=58-1-3=73-50+19=
10+20=44-0=15-5-4=90-80-10=
68-20=60-3=55-2-7=85-60+12=
70-60=96-3=90+6-7=73-30+7=
20+30=36+8=30+7-7=80-70-3=
50+10=61+7=42+6-8=83-50+16=
99-30=10+6=22-2-3=40-10-9=
70-30=19-2=66+9-9=90-80-8=
66-30=20+1=54+4-3=76-20+15=
40+30=31+1=14-1-8=76-60+12=
50+40=69+5=44-5-6=63-20+6=
50-20=50-7=30+2-1=87-60+16=
30-10=73+3=79+1-8=67-60+20=
50-40=90-8=87-8-4=80-40+5=
75-30=65+8=75+1-8=85-10+2=
30+30=45+2=27+5-3=80-40-14=
30+10=15-0=66+4-9=60-40+16=
90-80=69-6=68-6-4=80-10-16=
90-60=61-0=54+7-8=80-30-11=
30+30=35-0=28+3-2=77-40+20=
10+30=15-0=35+7-8=83-50+4=
72-10=49+5=24+7-2=78-50+3=
80-50=67+4=88+2-9=82-10+12=
90-80=50+7=24-7-5=80-30+10=
80-10=15-8=10+3-1=73-40+17=
76-40=19-3=26+3-3=75-50+10=
40-30=92-5=13-8-1=73-10+8=
88-10=58+8=18+4-8=60-50-13=
50+10=26-0=25-3-6=80-50-11=
79-20=62-4=16+5-4=85-10+16=
75-50=60+3=24-6-6=66-20+13=
73-30=28+1=65-4-4=90-70+16=
69-50=57-3=47-8-9=60-10-11=
10+30=27-1=14-4-2=80-50+1=
60-40=67+2=71+1-6=90-80+8=
60-10=89-3=41+4-9=90-80-15=
83-40=21+5=17-2-5=90-10-5=
30-20=20-0=13-6-1=80-70+6=
78-10=79+1=19-3-9=30-10+19=
90-40=82-3=33+9-9=80-20-19=
80-30=27+9=86+1-7=80-50+2=
30+40=76-9=90-1-3=76-60+17=
71-40=79+3=55+1-9=79-20+6=
10+10=20+7=64-5-9=85-30+3=
70-50=34+9=61-8-1=90-80-3=
20+10=20+5=84-2-5=87-20+3=
74-20=61+8=40-8-3=72-50+20=
69-20=62+6=60-4-2=63-10+14=
83-10=30+3=65+2-5=80-20+5=
70-50=43+7=53-2-4=72-40+7=
90-50=11+6=82-7-4=84-50+19=
80-70=60-8=71-8-4=70-30+8=
90-80=60-5=52-5-8=69-50+7=
73-10=39+3=51+7-1=90-30-15=
90-80=58+7=55-1-1=90-50+9=
20+30=46+5=33-3-7=87-50+3=
20+30=67+5=88-9-5=75-40+17=
40-20=85+3=41+9-7=82-20+12=
93-20=59+6=33+3-8=90-70+17=
20+40=58-2=49-1-4=70-30-5=
30+40=48-5=69+8-4=20-10+1=
90-10=82+5=61-9-5=84-50+1=
20+40=11-2=14+8-6=87-30+12=
90-40=18-3=17-5-5=73-20+15=
50+30=47-5=69+4-8=50-40-8=
40+30=36+2=84+4-8=85-40+3=
20+10=14+3=26+3-6=90-80-18=
70-50=67-4=47-1-4=87-20+14=
90-10=49-6=58-8-5=67-40+5=
40+20=60-8=48-7-1=40-20-19=
80-60=85+6=67-5-6=90-60-8=
50-20=58+6=38+8-2=70-30-3=
50+40=90-8=38+9-1=70-10-15=
70-60=54+4=53-6-9=90-80+11=
40+20=40+6=46+8-6=70-30+18=
68-30=60-2=62+2-3=88-20+1=
40+40=68+7=17-2-5=65-30+14=
89-20=86+4=46+1-1=62-20+13=
40-20=15+3=56+6-4=70-10+19=
70-60=24+7=12-8-7=20-10+16=
40+20=68+7=10-9-9=50-40+11=
30+10=12+3=21+2-8=87-40+8=
90-50=26-6=38-1-5=80-70-6=
90-30=63+1=71+4-1=80-20+17=
50-30=87-8=10-9-1=70-60+19=
80-30=48-6=57-5-1=80-60-11=
20+20=76+4=70-2-3=40-30-12=
76-10=98-4=30+5-6=77-10+18=
50+20=11+9=77+4-6=62-10+17=
60-10=89+4=74-6-1=83-60+10=
30+40=69-6=44+7-2=63-40+19=
50+20=21+5=70-4-5=68-40+8=
80-70=72+7=86+4-9=80-40-1=
50+10=77+9=83-7-2=60-50-16=
90-70=12-4=51+7-1=80-40+3=
85-50=88+2=23+9-7=80-40-12=
90-40=38-9=60+7-6=50-40+10=
90-80=94-4=74-9-6=88-50+14=
76-40=69-3=32-5-7=80-60-9=
65-20=55+8=11-3-1=20-10-10=
20+40=17+9=12-3-5=50-10-1=
97-10=28+7=44-9-3=60-40+2=
65-50=65-0=76+8-2=80-60-7=
98-50=20+1=80-4-6=60-30-15=
80-10=31-5=40-5-9=75-20+19=
68-50=48+4=70+9-6=62-30+16=
88-30=34-1=15-7-2=71-60+5=
40-20=57+8=54+8-6=89-50+4=
76-60=24-1=68+9-2=90-80+2=
73-40=15-7=82+9-7=71-10+4=
30-10=11-8=37+9-4=90-20+4=
40+20=60-9=46-1-5=73-30+5=
80-50=86-1=63+9-4=75-10+16=
50+30=81+2=22+3-5=72-50+8=
91-10=70+4=12+5-6=60-30-15=
69-50=16-8=88-4-7=81-10+6=
40+20=74-9=63+3-5=60-10-10=
90-80=41+7=10-9-4=63-40+8=
72-10=26+2=41-4-7=68-20+4=
90-60=64-8=34-3-5=40-30+13=
70-60=48+5=64-9-8=80-30-1=
82-40=96-9=75+5-9=86-60+20=
40+40=45+1=48+6-1=63-10+17=
60-30=36-4=45-9-8=70-50+6=
80-40=79+6=73-4-4=90-80+5=
90-60=17+1=85-1-6=77-60+10=
20+20=74+8=56+2-1=90-80+17=
80-70=54+3=51+1-7=74-30+17=
96-40=70+2=58-7-7=89-60+18=
30+10=19-8=79+8-1=80-10-17=
86-60=36-1=19-6-6=63-50+11=
90-80=46+5=38+6-2=80-70+6=
73-10=50-6=38-3-3=89-10+18=
70-30=34+9=88-6-9=90-50+3=
20+30=15+9=86-2-4=80-30+6=
90-40=78+2=70+5-7=60-20-12=
61-40=51-2=85-7-4=90-80-11=
50+10=34+3=30-4-2=67-20+11=
30+40=78-8=53-2-3=85-40+5=
60-30=82-8=50+1-8=86-30+2=
89-40=88-5=72-1-9=60-50+9=
99-60=79-7=42-5-5=84-30+6=
50+30=69+7=17+6-6=75-60+14=
90-80=68+9=45-8-2=61-60+19=
70-40=54-1=47-9-8=80-70-4=
90-30=56+1=76+8-5=85-20+13=
74-40=69+5=40-6-8=40-10-11=
75-30=59+6=71+5-8=72-50+16=
80-10=34+4=31-7-4=90-70+6=
90-80=25-1=81+1-3=82-50+11=
90-40=24+8=76-4-2=69-40+14=
90-50=72-9=17-3-8=70-50-18=
20+10=41+5=90+2-9=90-20+1=
40+30=81+1=20-1-2=80-40+5=
40+20=39-7=68-1-5=60-50+7=
60-40=68-3=15+4-4=73-50+12=
80-70=47-4=70-9-6=89-50+7=
20+
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