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