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