一年级数学下册口算宝典175.docx
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一年级数学下册口算宝典175.docx
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一年级数学下册口算宝典175
72-10=37-9=53+2-1=60-10+7=
20+30=43-3=46-4-2=84-40+5=
10+30=79-5=89+6-3=75-30+10=
40-30=66-2=71-3-2=90-80+16=
10+40=64+6=13+9-8=63-60+7=
60-50=38+5=88-9-7=90-80+19=
20+20=20+4=27+1-7=70-50-12=
80-60=73+1=22+4-6=40-20-6=
20+30=69-5=38+6-5=90-80+10=
30+20=85-7=39+5-1=74-10+20=
97-60=47-8=16+1-9=90-60-5=
90-80=36-4=85+7-9=69-20+4=
94-10=15+2=34+3-8=90-20+1=
30+10=90+5=16-2-5=90-80+17=
91-20=33+3=71+7-2=86-30+12=
76-10=15+5=70-2-6=90-60+7=
89-60=75+5=71-1-5=69-10+6=
40+10=58+6=55-3-9=30-10+11=
90-20=48-8=65+1-6=70-60+8=
75-10=63-2=13+7-9=80-50-1=
64-20=78+1=47+3-7=80-40-13=
96-50=26+5=38-4-7=90-70+7=
20+10=86+8=76+9-7=90-80+12=
40+10=57+6=81-9-9=75-10+4=
66-60=56-0=69+5-6=80-60+12=
90-70=35+8=54-8-1=67-50+18=
80-60=14+3=44-5-7=77-60+2=
75-40=42-3=55+1-5=60-20+5=
20+30=53+3=67+1-1=88-50+6=
40+40=73-9=49-2-5=63-50+6=
80-30=15-2=84+8-3=90-60-3=
70-60=79+7=79-2-2=86-30+7=
70-60=18-7=46-8-5=50-20+18=
50-10=12-6=16+9-7=90-60-14=
30+20=93-6=54+1-4=90-60-1=
90-20=62-6=13+4-5=63-40+4=
90-50=34+5=39-6-6=90-70+10=
80-10=46-6=55+9-5=90-80-2=
40-10=20-1=90-5-9=40-10+10=
40+20=55+1=57+3-9=90-60-18=
71-40=67-7=88-7-6=80-70+15=
80-30=20+8=71-2-6=90-60-8=
50-30=39-2=32+1-2=86-30+6=
78-10=27-8=65-4-4=90-70-9=
40+10=76+5=56-3-2=71-50+17=
80-70=30-8=80+8-2=61-40+19=
70-20=43+7=70-5-4=60-10-17=
60-30=75+1=84+5-1=74-60+16=
40+40=70-6=35+5-9=84-40+1=
30+20=69-8=37-6-9=88-40+4=
80-70=10+1=30-6-1=69-20+4=
90-30=80+4=81+3-3=64-60+20=
71-50=14+7=52-8-6=60-40+11=
30+30=35+1=45-7-6=80-50+12=
77-60=78+7=46-7-6=90-80+1=
77-40=87+7=41-1-8=80-60+1=
50+10=43+9=43-1-3=83-20+4=
70-30=79-0=42-9-5=40-10+13=
40+20=81+9=18+2-7=80-30-6=
50+30=74-6=21+8-9=60-40+12=
40+30=23+1=42+8-6=78-50+16=
90-80=19-6=35+8-4=71-20+16=
30+10=12-4=82-1-9=74-50+15=
40-30=80-4=49+6-3=90-70-5=
90-70=70-2=41+5-1=40-10+5=
30+40=67-8=76-2-3=80-40+2=
60-40=58-3=53-8-1=73-10+2=
91-60=69-5=41+4-4=60-50+18=
87-60=55-4=62+3-5=69-40+20=
50+10=19+9=84-1-2=70-10-10=
40+20=36+9=37+3-5=64-40+15=
50-40=67+6=89+9-5=73-50+9=
50+10=27-5=72-5-2=80-60+6=
90-30=74+5=41-3-7=88-60+15=
90-60=63+1=62-6-4=40-30+15=
30+30=64-0=12-3-3=74-50+19=
70-60=91-6=55-6-2=73-60+11=
40+20=23-6=22+7-8=71-50+16=
10+30=62+4=68+5-2=77-50+8=
70-20=28+9=56+7-5=89-40+20=
60-30=61-5=78-7-8=60-20+12=
90-60=29+3=11-3-5=79-60+6=
30+40=44+4=15-5-8=70-50+14=
80-40=23-4=88+6-6=90-80+2=
79-60=64-3=74+1-1=90-40-15=
30+30=96-1=35-9-3=90-50-7=
70-60=12+1=40+2-4=90-50-17=
70-40=95-1=50+4-6=90-80+9=
70-30=86+2=50+9-8=80-70-5=
80-60=80+7=80+2-9=80-70-11=
10+30=96-6=64+9-1=84-10+14=
40-30=50+2=70-7-9=90-60+16=
90-80=52-9=87+9-4=88-20+4=
90-40=24-6=50-5-6=90-50+6=
50-40=84-2=47+9-4=89-50+1=
30+40=29-4=17+3-3=67-50+15=
90-70=13+1=24-2-8=90-60-1=
10+30=63+6=24-1-1=89-50+2=
80-70=27+3=90+2-6=90-60-16=
91-20=59+2=52-5-1=90-40+18=
70-20=12+4=82-2-2=63-40+12=
50-10=55+9=70+7-8=68-50+5=
40+20=62-9=77+8-6=80-70-14=
88-20=59+7=46+3-3=60-50+12=
90-80=63+8=22+2-9=70-40+11=
88-30=24-2=31+4-6=89-40+12=
97-10=83+1=52-4-6=66-20+16=
88-10=82+4=49-2-7=50-30+15=
86-10=52+2=72-1-7=90-80-8=
71-30=84+5=59+9-1=50-40-9=
80-70=74+2=19-6-2=86-50+11=
40+20=86-2=50+6-3=63-50+20=
60-50=42+8=51+4-6=80-20+16=
60-50=12-5=77+7-7=70-60-5=
82-40=73+7=65-9-8=73-30+18=
83-30=67+2=24-6-9=70-60-6=
67-60=18+6=88-1-7=40-20-5=
84-40=68-9=61+3-7=50-40+17=
79-20=65+3=40-9-7=85-60+1=
20+20=69-0=36+6-8=90-60+7=
70-60=41+7=55-1-9=68-10+12=
50+40=31+3=32+3-3=76-60+19=
50+40=28-8=89-3-5=65-40+3=
40+10=79-9=84-7-4=77-50+1=
90-50=65+1=53-3-3=85-60+11=
97-10=55-2=57-3-2=60-40+16=
50+10=98-2=68-4-1=80-20-2=
10+20=16-1=88+8-8=30-10+1=
10+20=80-6=32+5-6=60-50-14=
50+40=52-2=48+8-3=80-30+8=
89-60=90-2=83-4-6=78-60+14=
92-50=65-3=10+7-3=62-60+8=
72-40=29+3=16-2-9=90-80-9=
90-80=22+5=62-4-3=90-70-3=
92-60=27+9=57+6-1=70-40+10=
10+30=35-4=21+1-3=62-40+3=
84-50=12+1=31-1-4=60-40-10=
86-50=43+6=11-7-7=70-20+3=
90-50=67+3=36+8-9=87-40+5=
40+30=54+5=88-4-8=70-40+17=
80-40=56-4=77+3-7=80-70-3=
20+40=42-8=39+4-5=62-10+14=
70-20=55+4=19+3-7=65-30+10=
40+20=37+7=10-8-1=69-40+9=
88-20=83+8=86-9-8=62-10+17=
93-30=52-6=53-8-2=80-70+4=
99-20=10+4=63-2-9=82-50+19=
96-10=64-8=52+6-7=84-60+4=
90-10=42+7=28-2-9=90-30-18=
30+20=53+2=12-6-5=69-30+15=
40+30=75+7=53+7-4=60-50-9=
50+20=31-4=65+8-3=88-20+18=
70-50=94-5=62-9-9=86-60+14=
72-20=16+7=42+1-4=70-30+8=
70-10=29-1=65-7-5=60-50+11=
30+40=15+4=87-1-8=81-10+1=
78-40=39-9=12+7-2=81-30+13=
30+30=99-9=12-4-3=66-50+13=
60-50=33+8=75+5-6=90-10+15=
90-40=74+7=59-1-7=76-10+5=
80-50=40+5=25-1-4=90-40-16=
90-50=65-3=86-3-5=79-20+12=
30+20=14+5=47+8-9=70-50+13=
73-40=55-8=65-1-4=66-50+6=
90-70=19-9=44+2-5=77-40+12=
90-80=68+5=73+3-2=76-40+15=
90-80=61-9=55+5-6=84-10+4=
50-20=93-8=78+7-3=60-30-15=
63-10=22+5=88-2-6=66-40+13=
80-50=19-5=17-2-1=40-10+3=
97-30=44+3=86+2-3=83-20+4=
75-20=53+2=82+8-2=70-30-5=
81-20=74-1=40-4-8=90-10-9=
30-10=86+7=73-8-1=80-70-2=
30+40=39-7=58-2-8=89-10+4=
30+40=39+4=82+7-6=87-40+11=
90-70=66+9=13-2-3=87-40+1=
95-10=36-3=12-6-8=80-70-4=
90-30=24+7=62-3-5=85-30+15=
60-40=27+3=23-1-9=70-50-7=
50+40=98-0=35+2-9=30-20+1=
70-30=32+2=65-8-4=70-20+18=
78-10=29+6=27-6-2=63-30+2=
81-30=52+4=55+7-2=88-30+11=
90-60=55-8=69+8-9=76-10+19=
70-10=99-1=76+8-9=60-10-1=
90-40=59-9=77-8-3=90-80-5=
10+20=92-2=63+1-9=78-40+4=
90-60=75-1=64-6-1=80-50-7=
40+20=44-8=77+4-9=50-20+16=
97-40=82-7=84-2-2=90-40+18=
75-30=64+7=30-4-3=90-80+15=
20+10=55-5=42-6-2=71-60+2=
80-70=85-1=81+3-9=90-80+15=
94-60=87-1=30+9-3=78-20+17=
80-20=71-7=58+3-3=64-20+12=
50+30=62+5=58+2-5=80-20+8=
90-80=87-0=28+1-3=65-30+9=
20+10=58-8=42+4-4=90-80+1=
20+20=32-2=19+7-1=65-60+18=
30+20=65-7=26+1-1=89-20+12=
30-10=44-0=74-8-9=63-20+17=
20+20=92-4=89+6-7=30-20-15=
30+20=22+3=38+9-7=80-50+6=
30-20=33+7=65-4-1=61-10+20=
63-60=36+5=72+3-8=70-60-6=
83-20=48-1=65-6-2=89-20+20=
60-50=30-8=49+1-9=63-20+16=
97-20=22-0=57-2-1=70-20+16=
20+30=55+3=76+3-5=87-20+19=
30-10=50-5=19+9-5=90-80+5=
10+30=56-1=60+6-6=84-20+2=
94-30=71+6=73-1-1=85-20+10=
76-20=35+4=65+4-1=80-60+8=
71-40=62-4=56-8-6=70-10-1=
70-60=69+2=76-4-7=60-50-6=
80-70=87-3=21+5-5=84-60+8=
71-40=28+7=10-8-4=87-20+14=
40+20=65-9=84+5-1=60-20-8=
80-30=33-2=88-4-8=60-10+3=
30+40=90+3=53-8-4=71-60+18=
30+40=39+5=37+8-7=81-50+17=
10+30=93-9=17-7-9=83-20+8=
10+10=39+2=39-9-3=86-40+11=
10+40=54-1=25-9-6=50-40-1=
64-10=28-3=11+9-5=89-40+3=
10+10=27+9=89+3-1=87-20+8=
64-20=79-0=10+3-3=80-50-8=
92-20=76+1=71-5-3=62-10+14=
80-40=38+6=28+3-8=61-50+13=
96-60=39-4=62+6-8=90-50+5=
30+30=27+4=63+2-5=72-40+8=
20-10=54+8=57-5-1=90-80+18=
50+20=57+7=78-7-8=68-10+10=
50+30=20-4=54+4-5=90-70-16=
50-40=62+7=28+9-5=61-20+1=
30+40=92-2=78+5-5=80-40-8=
83-40=55-4=29-8-8=72-50+4=
72-40=45-7=73-2-7=77-20+2=
50+20=20+7=35+9-8=78-20+5=
85-20=99-3=75+2-9=60-10+19=
90-50=97-1=35-6-4=40-30+11=
69-50=55-9=62+1-6=80-50+16=
10+40=90-7=17+8-3=70-20-15=
91-40=97-3=26+9-5=90-60-10=
70-50=62-5=50+2-6=73-40+11=
30+40=78+9=32-6-4=84-30+19=
50-10=21+9=64-8-3=30-20-3=
70-50=85+3=14+1-7=60-40-3=
40+30=83+1=22-6-7=68-10+19=
80-50=84-6=44-9-6=70-60+4=
20+40=32+5=58+1-3=70-60-18=
80-30=16+4=41-4-4=70-40+7=
30+30=31-0=18-1-2=60-40-10=
90-40=18-4=86-3-5=68-40+2=
10+40=26+3=90+7-4=60-20-11=
90-30=20-4=42+4-8=90-60-9=
50-40=60+4=77+2-9=70-50+3=
80-70=52+3=37-5-8=70-40+11=
83-50=38-0=50+8-4=62-60+18=
40+20=80-2=22+7-3=60-30-3=
50+20=56-4=55+5-2=90-10-1=
90-50=87+3=60+8-7=68-30+13=
83-10=89+4=81+8-6=80-70-7=
30+20=45-9=15+8-5=30-20-5=
10+10=79+9=55-7-1=90-70-19=
72-20=75+2=27+9-2=90-50+10=
90-80=33-6=51-2-1=30-20+8=
64-60=48+2=46-7-5=71-20+3=
30+10=33+4=62-7-2=73-10+5=
40+40=90+4=68+6-3=61-60+12=
30+10=37-2=29-9-1=85-60+1=
10+20=37+3=46+6-5=84-30+18=
50-40=48-8=30+6-1=62-60+1=
30+10=24+3=72+8-1=80-10-6=
99-10=33+5=90-8-8=60-20-2=
80-40=43-0=23+6-3=80-70-10=
30+10=44+8=51+5-7=82-50+2=
90-70=58-8=64+2-4=70-20+16=
30+20=39-0=70-4-8=60-50-4=
95-20=45+9=10-7-1=90-60-15=
72-60=36+2=46-3-4=60-40+13=
20+10=24+7=24-5-4=80-30+7=
30+10=87+1=23-3-1=20-10+11=
10+30=34+4=72+1-3=73-60+6=
50+10=14-2=70+3-1=73-40+6=
90-80=31-1=40-8-5=78-60+6=
78-50=55-1=85+6-4=90-80+2=
20+20=61+2=17+7-9=70-40-7=
30+30=16-6=
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