一年级数学下册口算宝典147.docx
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一年级数学下册口算宝典147.docx
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一年级数学下册口算宝典147
80-50=93-2=77-5-8=20-10-6=
80-10=41-4=28-8-5=90-80-8=
50-30=33+5=62+3-9=90-40-12=
40-30=70+2=88-2-3=50-20+6=
90-80=21-0=14+8-6=90-70-15=
69-60=27+5=13-2-2=90-80+13=
10+20=73-8=52+4-3=84-10+4=
20+10=63-6=36+3-6=80-20+11=
40+30=11-7=66-9-7=90-20+11=
85-60=70+1=85-3-6=90-80+2=
40+40=73+3=69-5-9=60-40+7=
80-50=50+4=27+5-6=50-30+17=
40-30=88-7=12+4-7=73-50+12=
20+20=77-6=52-3-2=89-50+3=
30+20=87+8=61-1-5=74-40+19=
90-80=28+9=31+8-9=70-40-5=
77-60=72-4=78+3-8=90-60-6=
79-60=28-7=62+1-6=69-20+4=
50+10=52+4=64+2-6=40-20+5=
80-40=41+7=60-1-9=73-10+9=
80-70=21+2=52-4-1=80-50-4=
30+40=59+5=55-1-6=90-40-7=
90-10=86-8=62+9-6=90-80-16=
80-50=73-3=23-7-4=86-30+14=
76-10=56+6=43-9-1=64-50+19=
79-60=36+7=29+2-1=63-30+7=
40+30=85-0=76-1-7=90-40-2=
79-40=24+5=79-3-5=75-10+8=
68-20=26-7=62-3-8=81-10+11=
50+30=22+8=61-9-8=84-60+1=
10+10=55-6=68-6-2=71-10+1=
93-60=24+8=12+2-5=80-70-6=
20+40=99-8=81-1-9=70-20+1=
61-10=11+1=82+6-5=75-10+9=
88-30=87+3=59+9-7=80-50+6=
78-20=76+4=36-4-4=83-20+14=
40-30=96-9=35-4-4=62-40+18=
69-60=44-8=25-1-6=64-30+1=
80-60=29+8=66+6-8=60-50-6=
80-70=25-8=30-1-2=80-50+3=
10+20=17+8=81-8-6=72-20+9=
90-70=97-6=46+5-2=67-60+16=
66-60=28+8=42+2-6=62-10+10=
60-20=49+4=70+4-8=90-60-13=
60-40=36-9=88-7-1=89-20+3=
76-60=35-8=69+5-5=69-40+2=
80-30=44+8=82-3-2=87-50+16=
10+40=23+6=52+2-6=77-20+2=
90-60=24+5=13+5-3=70-50+16=
88-60=75-6=27-2-3=80-70+3=
90-80=27-1=63+8-3=68-50+4=
40+20=30+5=74+8-2=80-70+2=
78-10=25-0=34+8-4=70-50-17=
30-20=61-3=40+3-1=90-40+3=
80-50=15+1=33-6-9=81-10+13=
80-70=58-9=29+4-6=80-10+20=
50+10=43-5=51+2-5=80-10+5=
50-20=81+5=68+2-1=90-80+2=
67-20=51-6=69+2-5=69-10+5=
72-60=35+1=80-8-9=64-40+2=
20+20=24-7=35-1-7=90-40-8=
94-60=75-5=90+1-4=90-50+7=
50-30=85+2=20-9-2=62-10+16=
70-40=66-9=62-8-2=90-80-2=
10+10=13-2=36-7-3=87-10+12=
91-60=52+8=41-5-7=78-40+20=
90-50=62+2=85+7-9=62-20+8=
20+20=19-4=26-6-9=68-60+8=
70-60=13-9=10-1-3=61-50+10=
40-20=38-0=49-6-3=84-40+16=
20+10=60+2=14-8-7=80-20+16=
70-20=82-5=60+3-5=80-30+20=
20+30=54-4=46-4-3=67-20+17=
75-60=87-4=67-9-2=83-30+19=
10+30=63+1=86+4-3=80-30+11=
70-30=26+5=66-2-7=61-10+17=
62-20=47+5=48+1-4=69-60+8=
50+30=59+1=82-5-1=70-10-8=
10+30=49+1=18+6-3=70-60+4=
70-10=26-5=17+7-9=87-40+20=
30+10=53-5=11+2-1=75-10+4=
83-60=64+1=18-5-8=88-40+13=
80-30=68+3=47-9-3=60-30+13=
40+20=74-1=42-1-2=80-70-18=
90-80=14-6=90-7-6=82-40+1=
66-10=92-7=68+6-4=70-60+12=
85-10=47+7=13-5-6=75-60+10=
80-60=98-1=39+8-3=84-20+19=
98-20=76+7=48+7-4=79-30+17=
50-20=55-2=42-8-6=61-20+18=
50+10=94-6=78-5-9=75-50+2=
74-30=91-6=39+6-5=40-20-9=
92-60=28-3=25+6-4=50-20-11=
69-10=63-7=21-8-5=90-20+4=
70-60=66-0=60+6-5=63-20+14=
90-80=92-9=53+1-6=75-50+10=
30+10=14-8=70+1-5=78-20+19=
69-60=64+1=37-3-5=90-30+8=
40+20=12-1=13+9-6=50-40-8=
64-50=68+1=13+6-7=90-70-1=
60-50=61-3=14+9-4=80-50-16=
40+30=52-2=74-2-3=84-50+3=
40+30=36-1=57-9-5=76-40+2=
40+40=28+3=57-7-6=90-10-1=
40-30=68-0=64-5-5=67-10+2=
90-70=72-7=35+2-5=62-20+19=
98-10=58+8=89+4-7=83-50+1=
50-20=75-8=48-7-2=80-20-12=
10+40=88+6=72-3-2=85-20+3=
30+30=96-0=65-4-5=90-10+14=
66-10=77+3=68-3-8=50-10+16=
50+30=52-4=69+9-3=69-60+8=
96-30=45+9=72+3-1=79-20+11=
90-50=52+3=63+7-8=74-50+14=
90-80=17-2=47+5-4=77-10+13=
70-60=21-7=30-5-6=80-40-11=
30+30=45-7=47+6-7=89-30+18=
77-60=97-8=16-4-2=74-10+5=
67-30=87-7=66+3-3=80-70+15=
74-30=87+8=67+3-1=83-30+20=
80-60=17+5=72+4-3=82-30+8=
72-60=11+1=54+5-2=89-10+19=
94-20=81+5=29-2-9=70-10-10=
76-20=56+5=24-4-7=85-50+8=
90-80=86-8=19-1-4=88-30+3=
80-50=88+1=36-2-1=61-20+17=
20+40=40+4=77+1-2=70-50+13=
67-60=78+2=23-4-1=63-40+11=
50+10=18+8=59-7-9=50-20+19=
91-40=24-6=87+4-1=80-30+11=
87-20=54-9=14-6-4=80-40+4=
90-80=51+1=26+7-7=60-20+17=
50+40=52-7=34+6-1=70-40-6=
98-60=39-8=90-7-5=90-70-11=
63-40=39+9=30+2-3=89-30+17=
90-40=47+5=74+3-7=80-50+3=
80-60=17-8=55+1-2=80-50+1=
50-40=78+5=72-7-4=63-20+2=
10+20=21+9=70+1-7=78-20+15=
70-40=47+6=73-8-1=60-30+9=
40+40=24+5=41-3-8=70-40+14=
40-20=36+1=45-3-9=80-50+11=
80-50=25-4=85+6-4=68-40+4=
40+40=17+3=76+6-2=40-20+9=
98-30=15-4=57
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- 一年级 数学 下册 口算 宝典 147