二年级口算提高篇.docx

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1、3 + 72 + 20=48+23+23 =463 =33+12+47 =25+15+42 =81-20 =81-8 =18+10 + 32 =31+33 + 33 =18+26+47 =9+57+13 =22+62 =1+34=50+16 =31+43 + 8 =31-30=49+32+14=11+23 =17+5+22 =32+19 =13+75 =38+4=6525 =32+34+14=58 + 32+1 =57-29 =15-1 =11+41 =71+6=17+9+70=8+73 =75-17 =44+44=50+16=80-51 =88-25 =66-8 =56+18 =2+18 =

2、11+87 =13+7+0=40+31+24=2+91 =10+44+41 =100-60=48-39 =74-59 =3 + 85 =0+16 =84-8 =15 + 20+9 =42 + 26 =43 + 25 + 8 =55 28 =15+49+31 =26+65 + 2 =27 + 59 =45 + 51 =42-40 =94-20=13 + 5 =29 + 30=94-50=13-4=73+5 =70-61 =24+23 + 38 =61 +5 =49+4+27 =4+61+34=0+74=46-10=88 37 =11+28+26 =75-71 =54+38 =47-6=50+44

3、=36-30=11-4=21-18 =10+3 =15 + 65+13 =37-9 =19+14+61 =7+28+21 =96-16 =25+5 =13 + 50+13 =1+30=29+4+27 =80+14=28+48 + 6 =6+57 =42+43+10 =18 + 39 =20-9 =43+1 + 1 =0+32+50=50+48 =24+46+0 =0+36+38 =25 + 5 =90-47 =19-12=38-16=19+2+40=24+71 =4+8 + 33 =51-6 =43+5 =77-76=13+24+0=13-10=20+20=49+43+4 =6+19+61 =

4、2+67 =36+9 =49-1 =64+9+16 =25+51 =57-7 =35 + 23 + 39 =16+15 =49 + 30=64+14=7+40=21+26+29 =0+8 + 88 =73+9 =42-12 =42-15 =100-50=7764=32 + 55 =52+16=47-13 =66+10 =52 + 33+10=22 + 23 =31-23 =36-4=52-40=0+6+63 =17 + 0+45 =97-90=33+9+19=82-1 =10+8 + 55 =20 + 5 + 28 =59-27 =48+1 + 1 =36+10+21 =60-25 =31+3

5、0+12 =6+4+74=0+20=17+11+64 =55+27 =8+7+29 =68-61 =95-30=94-12 =24-20=4+43+51 =5 + 38 =14+32+17=43 + 29+4 =33+9+11 =94-33 =87-5 =93-89 =7 + 72 + 7 =71+21 =33-24 =75-36 =69+9+15 =27 + 57 =76-7 =1 + 13+31 =5+10+82 =90-6=5 + 23 + 39 =45 + 20+28 =8+21+26 =43-7 =10+57+26 =35 + 23 + 26 =24+26 + 30=26+29 =1

6、00-83 =72+5 =79 + 2 =83+0=3+19+58 =70+14+10=19+38+7 =4+36 =3828 =77+20=90-63 =8779 =14+79 =87-46=83-80 =0+71+27 =47 + 32=53+42+0=3428 =24+33+12 =0+8+41 =15+24=50+4+44=42+1+47 =30+60 =5+26+20=23 + 7+1 =5+45 =65-36=22+63 =35+1+0=95-31 =50+42 =40-12 =74+6 =82-73 =59-6 =4+4=58+17+7 =73+18 =13 + 32 + 3 =

7、9484=65-38 =28 + 37+19 =9+30=7231 =6356 =21 + 14+1 =31-9 =93-3 =45+13+2 =7 + 87 =62-19 =8+28 =6+60+27 =56+5+29 =60+28 + 2 =95-75 =68+17 =37+61 =41+50+4=9139 =95-72 =83-11 =47+14+32 =72-15 =6+41+8 =3+48+0=34+5 + 33 =17+22 =92-55 =8346 =3+22+58 =5534=41+3 =89-71 =83-80=53+46=9554=36 + 39 =41+32 =20+14

8、+53 =39-18=26 + 20+15 =13 + 61 =10-3 =33+0+60=91-60=38-14=76-30=89-42 =6847 =14+51+25 =23-13 =74+12 =15+17 + 56=56+3 =25+49 =47+21 =6153 =18 + 57 =11+27 =33+53 =42+36 =14+2+26=49+45 + 3 =35+53 =7+17+66 =63-28 =74+13 =42+33 + 8 =57+12+23 =37+56 =28+66=34+47 =22+7 =55+1 =70+1 =24-2 =77 34=81-77 =89-83

9、 =17+5 =96-57 =37+0+29 =59 + 32+5 =47 + 34=52 + 7+29 =1+96 =26-20=71 + 19=87+6 =39+53 =95-46 =56-15 =52+44+1 =5+1+91 =57 + 33 =1+29+20=27 + 32 =16+78 =7952 =93-68 =52+17 =66-12 =2+26 + 30=1+33 + 30=3+56+19 =17+24+3 =47+25 =0+37 =19 + 32 =30+12+7 =13 + 35+0=27+23 =23 + 2+1 =10+35 + 38 =66+33 =89-63 =

10、51+5 + 36=8165 =20-8 =82 74=0+18 =10+60+19 =53 + 12 =90-20=84-38 =70-42 =3325 =73-44=17+16=55 + 37 =50-4=5351 =45 + 5 + 7 =66-42 =51-10=59-22 =37+9 + 32 =70+22 =18+6+73 =30+14=14+19 =61-31 =48 + 23 + 5 =76+7+11 =77-44 =59-38 =19 + 72 =70-46 =91-57 =65+10+14=23+12 =28 + 8 + 62 =23 + 20+10=64-62=86-35

11、 =41-4=9668 =54-24=71-13 =56+10+19 =52+12+12=97+1 =43-4=66-3 =46+36+13 =16+1+52 =29+62 =10+40+28 =37+50+8 =64+16 + 643+4=40+53 =20+30=43-9 =67+1 + 13 =65-52=61-26=13+72+7 =90-28 =59+25 =72-34=52-13 =16+75 =87-3 =88-67 =56+43 =76-1 =55 36=1+58 + 32 =85 + 8 =1+84=2+11+61 =14+16=58-1 =20+66 =68-23 =2+4

12、6+41 =36-24=25+41+31 =40+15 + 33 =8 + 81 =10+25+34=45+13+22 =14+12 + 25 =7356 =24+3 =49+42 + 6 =37+19 =46-37 =32+27+0=6145 =25+40+6 =19 + 22 =94-29 =2+76=645 =43 + 56 =70-13 =92-56 =50+7 =63-21 =28+2+12 =9442 =32-27 =43-31 =41-35 =92-80=10+24=42+17 + 6=60+36=60-2=93-53 =79-3 =12 + 26+43 =94-53 =25+0+49 =59-56 =100-87 =11 +16+1621+54=68+18 =24+57 =19+48+27 =43-9 =75 + 12 + 6 =28-16 =50-41 =52+14=1+27+56=3+13 + 37 =47+17 + 20=35+53+2 =44-40=75+15 + 3 =68+5+22 =47+44 =7+0+14=8 + 53