一年级数学下册口算宝典159.docx
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一年级数学下册口算宝典159
90-50=54-3=39+1-4=80-70-4=
20+40=53-1=72+2-9=80-50-17=
10+20=79+7=57-7-4=82-50+14=
80-30=56+6=62+6-1=73-50+10=
20+30=39+7=14-6-4=70-50-18=
40+20=72-4=52+1-3=30-10-5=
40+30=48-7=83-6-8=74-30+13=
40+40=48-4=67+1-5=67-50+4=
60-40=25-8=80+4-6=64-50+8=
20+10=42+3=76+1-3=64-20+1=
50+30=34+3=65-9-5=68-10+12=
50-10=84+8=15-8-9=86-60+9=
74-50=51+2=65-9-1=70-60-11=
80-30=59+2=82-5-6=89-30+6=
90-20=13+8=47-4-5=80-50-19=
90-70=32+4=19-4-5=62-10+13=
79-50=14-5=24-9-1=60-50+10=
80-60=85-7=44+2-8=80-60+16=
20+40=55-9=90+1-9=90-20+6=
10+10=69-4=38-3-1=76-50+12=
30-10=22+3=22-8-8=77-20+9=
20+10=16+4=45-7-8=72-30+19=
70-50=86-1=36+3-9=77-60+1=
90-60=80+4=25+3-4=80-70-19=
90-20=42+4=33+1-4=20-10-5=
30+10=94-7=13+4-8=40-30+15=
94-50=24+2=76+5-4=61-50+18=
69-10=14-4=59+7-7=50-40-16=
70-60=72-3=89+3-4=90-80-17=
20+40=82+8=56-5-2=81-40+7=
90-80=45+2=74-1-2=68-40+8=
50+10=53-1=57-8-7=80-50+8=
87-60=34+9=20-5-1=67-60+18=
62-20=54+2=89+3-8=64-10+10=
71-40=99-4=78+6-7=88-50+12=
70-60=26+3=22-6-3=88-10+14=
82-20=59+4=23+4-7=63-50+20=
90-80=60+9=73-5-4=80-40+10=
76-60=57-6=56-4-1=90-30+16=
77-20=83+8=34+3-7=72-50+5=
40+40=13-2=32-8-5=80-70+7=
60-10=92-5=73-2-9=60-30+7=
70-60=54-2=37+6-7=60-40+7=
50+20=74+8=58-6-3=60-10+8=
30+30=42-1=89-7-9=90-40+9=
64-50=95-9=64+5-9=90-70+11=
50-20=17+5=76+9-5=87-20+5=
50-40=62+1=36+9-9=90-80+3=
50+40=52-6=21-5-3=73-50+15=
89-40=58-4=20-3-5=77-60+13=
90-60=54+6=68+4-2=68-40+5=
62-60=82-5=80-5-4=71-40+2=
93-30=29+3=78+6-8=86-20+8=
77-60=27-6=87+9-8=73-30+5=
20+20=85-9=60+6-3=80-70+5=
97-20=40+5=73+9-9=83-60+7=
63-20=76-2=11+8-9=69-30+3=
20+40=64-3=19-8-8=50-40+8=
68-30=75+4=64+1-9=86-30+10=
91-30=52+6=34+5-1=70-30-9=
30+10=35+8=78-4-9=90-80+12=
50+20=86+6=89-4-3=80-60-14=
81-40=54-9=52+4-4=90-60-13=
50+20=85+9=27-9-8=50-30-18=
87-20=23-2=59-3-2=78-20+4=
20+30=43-1=53+1-6=70-10+1=
64-30=19-2=75-1-2=70-10+19=
96-20=91-8=11+9-3=70-60-8=
90-80=29+4=49-2-2=30-20-8=
40+10=49+8=63+4-1=90-60+7=
90-60=91-4=41-9-1=30-20-16=
40+40=58+5=17-3-3=40-10+3=
50+40=81+2=14+7-9=86-30+19=
70-10=76+7=52+4-2=80-50-2=
40+40=89-6=58+2-2=80-60+20=
30+10=97-8=33-4-6=20-10-5=
30+10=63-4=27+1-4=74-20+1=
10+10=19-5=18-7-3=74-20+5=
50+20=91-1=71-5-9=50-10-15=
70-60=60+4=59-5-8=80-70-9=
40+40=94-6=75+4-3=63-30+15=
60-50=65+3=39+2-6=90-10-18=
90-70=87+9=76+1-5=40-10-12=
70-50=35-1=42+2-5=72-50+9=
50-30=64+4=14+9-3=90-70+6=
20+40=76-7=73+6-7=80-30-16=
83-60=63+5=29+8-5=86-30+20=
95-30=68+7=85-3-7=69-10+6=
79-30=87-4=78+6-7=76-50+20=
50-40=85+9=87-7-3=64-20+11=
40+30=37-8=16-5-8=90-20-11=
70-60=47+4=31-2-8=90-10-18=
30+10=58-4=33+7-7=90-20-9=
80-20=76-8=13+4-3=81-20+12=
40+30=55-7=26+6-6=90-80+14=
80-40=63+6=43-3-9=62-60+18=
70-40=48+4=79-3-1=90-80-2=
70-60=16+6=79-9-7=80-70+9=
60-10=42+9=47+4-3=74-40+14=
40-10=54+1=86-9-3=68-50+6=
71-60=66-7=51-8-8=50-10-17=
79-40=88-6=45+1-6=65-40+20=
90-80=46-1=68-6-6=73-40+9=
93-40=18+5=33+1-7=60-50-6=
78-20=69+6=44+5-5=80-70+19=
70-20=80+5=79+9-1=80-60-15=
71-50=64+3=74-5-4=77-50+11=
62-20=60-8=71-7-4=64-30+8=
30+10=78-2=53+9-2=73-40+20=
90-70=16+9=53+5-1=30-20+5=
50-10=19+8=67+5-6=60-10-7=
10+40=49-1=51+2-9=70-40-18=
50+20=65-2=61+1-3=70-10-11=
85-30=22+2=75-1-5=80-70+16=
71-50=30-0=28+7-1=70-60-16=
97-40=14+9=38+4-4=86-20+8=
70-60=96-2=42-7-9=64-10+17=
97-40=36-6=86-1-2=87-40+11=
65-10=63+4=73+1-8=83-30+18=
80-50=45-6=42-6-2=86-10+10=
40+40=48+2=84-1-4=69-20+1=
40-20=61-0=65+3-6=86-20+10=
50-40=79+7=18+7-8=80-60+8=
98-10=27-7=22-4-2=81-30+14=
40+30=14-5=80+4-3=90-60-15=
80-40=65-9=24-2-7=90-60-5=
78-10=76+1=56-6-9=88-20+14=
75-30=83+4=30+5-6=80-60-5=
10+10=58+5=36+3-6=30-20+2=
50-40=18+2=26-8-3=85-20+20=
30+40=26+8=11-7-2=80-10-16=
90-80=66-4=42+9-5=68-60+11=
80-20=35+1=70+3-9=70-50+13=
20+10=10+4=15+3-9=60-50-14=
50-10=17-3=13+5-7=20-10+14=
78-40=27+3=24-6-9=90-70+15=
93-40=32-5=50-2-5=68-60+20=
30+30=23-9=53-4-9=87-30+8=
20+10=55+9=68+4-9=80-40+2=
40+10=80+8=90-7-5=78-10+13=
10+40=52+7=39-9-8=88-50+12=
78-50=30-3=63+6-4=63-20+14=
90-60=85+6=86-4-2=68-50+19=
76-10=66-5=60+6-2=67-40+3=
30+20=65-5=88-1-4=90-70-14=
96-50=83-5=18+8-7=50-20-7=
99-20=10+1=15-3-9=68-30+1=
64-40=81-1=18-5-8=90-80-16=
80-10=34-8=49+1-6=77-50+17=
70-50=31+2=77-2-6=90-70-8=
90-80=50-5=65+5-4=68-10+8=
20+40=39+1=69+6-7=68-10+16=
66-40=57-6=74+2-5=76-30+13=
30+40=98-1=67+4-9=50-10+9=
84-60=93-3=81-8-7=71-60+19=
20+30=10+7=24-1-9=80-60-7=
72-20=73+9=82-3-5=80-40+10=
90-30=53-2=22-3-8=84-40+2=
70-60=77-4=86-1-6=61-60+5=
84-50=11-4=32-1-2=80-30+11=
20+20=93-1=78+1-5=67-50+20=
40+40=28-3=41-8-1=90-70+1=
68-40=74-9=79-7-9=61-40+18=
20+40=53+5=15+2-6=85-10+13=
60-40=22+7=60+2-5=80-50-11=
10+20=49-9=69-8-5=88-10+1=
90-80=47-9=71-4-6=60-30+1=
72-60=27-4=32-2-8=80-70+19=
70-60=68+8=55-5-5=80-40+6=
30-10=34-9=40-4-5=73-10+8=
50-40=45-1=48+8-6=90-50+7=
50-20=62-3=84+8-1=68-30+12=
40+10=24+7=23-5-3=83-60+3=
96-60=89-1=82-2-2=62-20+20=
10+30=78+8=28+4-9=69-10+11=
50+30=34+6=69-6-8=80-30+9=
40-30=11+3=68+5-4=70-10-19=
91-60=52+1=61-1-1=63-30+20=
60-40=43+2=44-3-2=90-20+5=
50+10=17-7=57-1-3=70-60-8=
10+40=54+1=81-5-7=74-40+18=
80-60=19+5=29+2-3=78-50+8=
40-30=40-5=68-1-2=90-70-12=
50+30=73-0=27-2-8=77-20+16=
70-20=15+7=90-8-6=70-60+15=
50+20=60+9=42+7-6=40-10+16=
50+30=67-1=72+7-8=70-30+19=
30+40=76-6=38-4-1=80-70+17=
50+30=81-5=81-3-4=90-80-13=
50+20=66+8=10-2-5=86-60+2=
20-10=70+5=89+5-3=90-60+17=
72-20=40+8=24-3-1=80-30-2=
90-10=27+4=50+5-3=67-40+10=
30+40=16+5=13-6-1=70-60+14=
80-70=54-4=51-7-2=50-10+13=
90-50=87-3=89-9-5=67-20+17=
70-60=49+5=82+5-5=70-50+2=
30+40=75+3=52-4-2=70-50+7=
20+40=63-4=22+3-9=80-70-1=
40+10=21+7=85+1-6=78-20+11=
20+20=42-3=51+6-6=80-50+1=
30+40=40-3=37+4-4=60-50+13=
10+30=84+7=71+9-6=73-40+4=
78-20=51+1=23+5-7=70-60-6=
64-40=55+1=39-5-1=83-40+20=
40+30=55+2=46-7-9=83-50+5=
40+30=61+3=37+1-7=61-40+18=
87-10=84-2=41+5-5=80-40-12=
98-40=52-7=70-4-9=80-40+7=
70-30=72+9=74-5-8=85-40+14=
77-60=64-3=71+8-3=80-30+4=
65-40=22-4=57+1-3=62-40+18=
50+30=29+4=63-7-8=70-50+4=
20+20=17+6=77+8-1=50-10+16=
30+40=62+2=89-9-8=60-40+19=
30+20=59+6=29-8-3=60-40-17=
40+10=68+9=57-4-7=90-70-2=
20+10=84+7=29+3-6=64-30+7=
90-70=49-7=17-2-4=79-50+5=
20+30=12+6=59+5-7=90-80-6=
40-10=42+5=35-3-3=40-10-7=
50-30=34-2=69-4-7=69-50+7=
60-40=42-3=65-7-9=87-20+14=
90-60=17+6=24+7-6=75-20+18=
40+20=58-0=41+6-1=90-50+5=
90-70=65+7=86+2-5=69-60+9=
10+30=71+9=17-7-4=60-20-10=
64-20=22-6=29+6-8=79-50+6=
90-70=55+3=65+5-1=80-60+3=
86-20=89-3=31-3-4=80-30+10=
74-60=29+3=63+5-6=90-30+15=
40+30=11+4=67+1-2=88-50+14=
76-50=78+9=72-8-7=80-10+15=
20+30=55+9=85+1-1=85-20+19=
63-30=76-1=65+2-8=70-20-2=
50+30=70-4=39+6-4=73-60+6=
78-50=33-6=82-6-8=64-60+9=
79-50=10+8=19+9-1=70-50+8=
80-70=69-1=26-5-8=65-20+10=
70-50=53+7=83+7-8=78-40+19=
40+20=68+3=56-1-1=60-50-9=
10+40=27+8=46+4-6=76-10+5=
75-40=38+5=24+4-5=78-20+12=
70-50=44+8=72-9-6=66-10+4=
80-70=70+7=69+5-3=83-20+18=
50-40=56+6=82-5-8=61-30+4=
90-70=74+8=56-4-9=79-10+13=
10+40=67+8=66+7-9=74-10+11=
70-50=19+2=21-4-4=66-30+11=
50+20=18+6=10-4-3=79-40+1=
20+20=39-4=23-5-3=30-20+9=
20+20=32+9=53-9-2=87-50+12=
90-50=66-8=75-1-1=81-20+2=
10+10=88-4=17+5-1=66-30+18=
85-10=23+8=33-5-9=80-30-4=
95-20=88+4=53+2-8=81-50+13=
60-40=57+1=12+8-8=67-50+13=
90-10=34+7=76+8-7=68-10+1=
63-40=18+7=16-8-2=30-20-2=
40+20=77-9=48-6-7=90-60-12=
64-30=20-5=47-4-2=40-30+14=
20+40=16+6=58-5-9=50-20+13=
10+20=23+3=36-1-9=77-10+2=
80-60=41-5=69+4-2=70-60-14=
50+20=22+4=41+7-3=70-40+17=
90-40=83-6=55-2-7=72-20+16=
60-20=18+6=17-9-2=69-10+14=
90-40=31-6=79-8-6=88-50+6=
65-30=29-8=62+2-6=65-40+6=
70-50=54+4=23-3-5=90-50+3=
50+40=11+4=56+1-6=90-80+11=
50+20=31+6=47-3-4=90-80-14=
80-40=55+1=58+4-2=62-30+14=
30+20=17+8=38-1-3=64-40+20=
50+40=25+4=29-9-3=85-50+2=
75-40=11-4=50+2-6=76-20+15=
60-40=55-8=80+5-2=50-10+19=
10+40=56-6=71+6-5=80-50+2=
50-40=49+8=26-8-3=50-20+9=
70-40=84-8=46+4-5=64-20+3=
85-40=16+4=83+3-4=83-30+19=
80-60=78-1=11-8-2=67-10+20=
50+10=51+9=21-4-7=70-30+16=
90-80=88-0=68+7-3=60-20-14=
64-40=25-5=60-2-8=73-50+7=
50+20=29-7=45-6-1=87-30+5=
20+30=18-4=87+6-5=78-20+20=
90-80=13-6=18+6-2=60-50-1=
20+30=14+3=10+5-1=40-30+15=