二上口算天天練說(shuō)課講解

1、口算天天練(1)時(shí)間：正確：題錯(cuò)誤：題94- 90=71 - 43=72 - 67=89-30=69+ 3=93 - 90=44 + 17 =7-4 =100-84=18+ 39=97 - 23 =18+ 76=100- 78 =91 - 52=21 + 45=75-33=67+ 30=36 + 30=7- 1 =88-69=16+ 74=75 + 11 =73 + 9 =96 - 39=100-99=61 + 38=72 - 37=81 - 36=7 + 81 =16+ 76 =86 - 83=54 + 39=55+ 27=52 + 8 =78 - 9 =91 - 57=73+ 6=67 +

2、 19=45 - 42 =29+ 36 =100-40=46 + 40=21 + 64 =51-40 =50- 22 =8+ 69 =45 + 16=44- 34 =8 8 =81 - 9 =26 + 48=7-3 =29- 7=37- 10 =29- 14=80 + 19=82- 12 =80-43 =27+ 37=47 + 36=50- 27=56 - 26 =51 + 25=78 - 8 =50+ 13=59 - 11 =8+ 80=77 + 2 =75- 56=42 + 13 =12+ 61 =39 + 42 =79- 26=72 - 60 =26 + 27 =62 - 46=94 -

3、 7=63 + 23 =86 - 34=75- 71 =55- 50=88 - 78 =67-53=38- 28 =72+ 13=23+ 74 =39 + 49=36- 8 =62 - 40=94 - 5 =100-84=45 - 24=56+ 25=71 - 7 =39 + 28=6+ 78 =13+ 53=99 - 90 =82 - 1 =77 - 5 =口算天天練（2）時(shí)間：正確：題錯(cuò)誤：82- 15=51 - 40=2-2 =31 + 2057+ 9=62 + 4=81-2=16 + 38 39+ 28 =68 - 16=41 + 44 =35 + 1798- 2=49 - 21 =9

4、6 - 9 =34 + 41 49- 43=48 - 25=40 + 42=70 - 44 4 + 70 =26 + 35=93-40=87+ 1031 + 67=73 - 10=78 + 14=83-54 58- 27=40 - 18 =80 - 9=84 - 11 99- 80=37+ 45=85 - 44-79 - 15 51-50=58 + 27=87+ 12-28 - 26 89- 68 =98 - 16=96 - 26-47-23 99- 61 =38 - 26=28 - 18-6+ 8667- 10=76 - 3=73+ 1 =88 - 28 45+ 9=31 + 67=67-4

5、1 -90 - 4773+ 14=37+ 25=16 + 48-32 + 53 42+ 12 =8+ 63=71 + 4-64 + 21 61-49=61 + 17=99 - 67-80- 19 27- 5=37 + 14=59 9 15+ 72 45- 33=55 + 11 =43 - 21 49 + 6 79+ 6=50 - 16=31 + 2449 + 1861- 14=35 - 12 =18-723+ 6734 - 18 =82 - 77=77 - 5291 - 29 3 + 83=57 - 55=92 - 32 7+ 8343+ 27=87+ 11 =46 - 1733 + 54 6

6、4- 46=43 - 6=19+ 4951 - 25口算天天練（3）時(shí)間：正確：題錯(cuò)誤：44+ 51 =10+ 64=12+ 70=50 - 46 -29+ 40=51 + 41 =33 + 32=78 + 8-59+ 2=97 - 16=74 + 3 =27+ 51 -63- 39=11 + 81 =16+ 38=50 - 24 -48+ 45=13-6=74 - 29=47-8-13+ 43=5 + 46=99-68 =80-57-75- 38 =23-8=25+ 75=29-22-97- 27=43 + 7=64 + 10=66 - 10-29+ 56=71 - 37=14 + 46=2

7、+ 74 -42+ 43=89-34=16+ 52 =67-44 -60- 25=29- 12 =31 + 44 -15+ 83 -65- 31 =14+ 70=76 - 64-95 - 30 -31 + 52 =98 - 98 =57 + 6-70 - 69-68+ 21 =58 - 24=58 + 28-36 - 7-40- 12 =39 - 24=52 + 15-10+ 88 -10+ 88 =54 + 20=79 - 10-2+ 9575- 31 =37-31 =46 + 5-36 - 614+ 47=67-2=1 + 82 -80+ 2095- 89=31 - 29=59 - 39-

8、28 - 22 20+ 75=51 + 10=11+ 63-49 + 32 81-35=47+ 50=63 - 22-83-31 38- 16=100-67 =64 - 9-44 + 51 43+ 24=56 + 17=39 + 44-35 - 28 36- 20=31 - 26=61 + 14-34 - 2 63- 45=44 + 23=47 - 41-7+ 69口算天天練（4）時(shí)間：正確：題錯(cuò)誤：題95- 95=34 + 40 =21 + 52=6+ 78=54+ 21 =39 - 20=55 - 28=100-34=4 + 49 =46 + 6=72 - 48 =100-86=22+ 6

9、0=39 + 29=50 - 3=52 - 44=59+ 30=22 + 33=69 + 25=78 + 20 =83- 65=23+ 44=61 - 8=38 + 32=27+ 32 =95 - 71 =99 - 30=58 + 40 =47+ 25=99 - 12 =96 - 80=65 + 31 =46+ 19=14+ 49=69 - 25=14+ 41 =50- 45=30 + 47=48 + 29=53 + 25 =80+ 7=46 + 19=39+ 59=11 + 81 =83- 69=5+ 77=80+ 15=47-20=37+ 62 =95 - 83=49 + 13=36 +

10、64 =69- 23=48 - 42 =35 + 31 =65 + 1 =97- 40=85-39=43 - 33=25+ 52 =38- 11 =46 - 37=5+ 72 =78 - 30=5 + 68 =32 + 45=95-44=53 + 27=15- 14=31 + 50=46 + 11 =28+ 41 =24 - 13=7+ 55=34 + 23=91 - 45=56+ 4=7+ 77=31 + 65=99 - 41 =46+ 44=87-53=1 + 80=73 + 26=80- 11 =1 + 59=2+ 96=49 - 10=49+ 51 =95 - 92 =21 + 42=

11、66 + 8 =7 + 83=46 + 49=72 - 16=45 - 24=40+ 59=98 - 43=13+ 55=25+ 43 =口算天天練（5）時(shí)間：正確：題錯(cuò)誤：20- 1 =92 - 69=13+ 62 =8+ 54=74- 53=46 + 14=18 + 63=81 + 12 =83+ 2=67 + 7=2+ 74 =27+ 56 =36+ 60=34 + 63=30 - 26=10+ 63 =36- 12 =94 - 23=88 - 68=67+ 23 =73- 63=57-35=44 + 34=88 - 34 =25+ 44=5+ 63=16+ 72 =23- 17=34

12、- 18 =63 - 52 =68 - 41 =23- 14 =70- 34=52 - 1 =9+ 69=21 + 52 =22- 3=23 + 47=94 - 65=18+ 64=59- 27=88 - 7=25+ 28 =31 + 21 =27- 13=49 + 40=22 + 70=66 46 =61+ 17=87-83=42 - 2=56 + 13=2 + 76=24 + 40=71 - 37=74 + 16=15+ 78 =5+ 92=98 - 30=95 - 46=91 + 9=60 + 16=55-51 =96 + 1 =68+ 12 =52 + 42 =91 - 2=25-5=

13、94 89=66 - 25=34 - 4=71 + 3=66 55=91 - 56=13+ 86=22 + 64 =2 + 90=43 + 38=85- 10=93 - 40=43+ 23=96 - 61 =77 + 5=76 + 4=71- 15=87-50=6+ 86=17- 15=76- 75=13+ 83=64 - 5=39 + 46=42+ 30=38 + 21 =47 + 4=87-55=79- 56=7+ 93=60+ 4 =63 + 13=口算天天練（6）時(shí)間：正確：題錯(cuò)誤：53+ 11 =24 + 76=6+ 83=74 - 12 =31- 17=7+ 77=52 + 7 =

14、26 + 64=87- 68 =52 - 47 =19-7=25+ 75=75- 62 =28+ 27=37 + 45=82 - 32 =92 - 89=28 - 15=79 - 62=95 - 26 =33+ 66=63 - 45=53 + 23=3+ 84=70- 53=31 - 24=35 + 47=42 + 54 =31 + 61 =12+ 67=51 - 24=89-23 =5 + 48 =57 + 15=91 - 22 =25+ 34=92 - 55=31 + 69=71 - 15=96 - 40 =12+ 52 =74 + 22 =31 + 48=67-28 =88- 2=12

15、+ 49=41 + 33=28+ 24=47+ 22 =63 - 39=95 - 87=43 + 46 =90- 71 =70 - 56=46 + 12=78 - 38 =68+ 14=6+ 61 =4+ 57 =90 - 14=82+ 18 =47+ 6=29-3 =98 - 78=17- 14=94 - 27=8 + 42 =92 - 53=45+ 29=29- 15=24 - 16=23+ 39 =18+ 62 =85+ 5=7+ 57 =66 - 37=75- 28 =45 + 7=21 + 75=69 + 25=13+ 55=88 - 61 =64 - 61 =72 - 24 =26

16、+ 64=99 - 4=85-74=7+ 57 =76+ 24=78 - 10=47 + 31 =80-36 =6 + 86=66 - 22=87-82 =53 + 11 =87- 6=95 - 93=92 - 14=6+ 93=口算天天練（7）時(shí)間：正確：題錯(cuò)誤：93- 88 =37+ 13=94 - 53=93 - 60 =69- 24=65 - 31 =33 + 27=90 - 16 =75- 74=50 + 45=8+ 57=8+ 63=66- 39=46 - 11 =25 + 65=55 - 31 =57+ 12 =5+ 80=20+ 60=58 - 26=26+ 70=67-26=

17、75 + 24=13+ 53 =99- 90=82 - 1 =77-5 =82 - 15=51-40=2-2=31 + 20=57+ 9=62+ 4=81 - 2=16+ 38 =39 + 28 =68- 16=41 + 44=35 + 17=81 - 63 =10- 7=39 + 41 =71 + 20=44 + 27=17+ 54=51 + 26=73 - 7=58 - 45=17- 6=100-45=55 + 39=68 + 23 =81-63=10-7=39+ 41 =71 + 20=44+ 27=17+ 54=51 + 26=73 - 7 =58- 45=17-6=100-45=55

18、 + 39 =35- 27=95 - 73=50 + 18=44 + 28 =17- 5=86 - 56=31 - 13=66 + 5=56- 21 =10+ 77=25 - 13=32 + 35 =17+ 44=16+ 82 =24 + 41 =79 - 28 =27- 1 =63 + 31 =45+ 21 =42 - 11 =48+ 44 =23+ 69=45 + 21 =2+ 84=85- 27=61 - 34=8+ 56=80-79=51 + 4=21 + 60=42 + 47=41 - 36=60- 3=47 - 23=79-36=47-37=口算天天練（8）時(shí)間：正確：題錯(cuò)誤：98

19、- 71 =30 - 20=88 - 18=69 + 14-99- 46=70 + 16=65 + 5=78 - 42 -62 - 48 =79 + 4=87-70=70 + 3-9 + 73=79 - 76=21 + 41 =44 - 29-28+ 26=93 - 20=66 + 5=85+ 1 =91- 11 =68 + 23=52 - 49=20+ 74 -36+ 27=79 - 59=4+ 96=29+ 35-75- 29=20+ 56=53 - 17=32 - 26 -10+ 58 =63 - 48 =58 - 54=22 + 50 -93- 59=35 + 50=75 + 6=79

20、 - 67-25+ 33=51 + 29=19 + 44 -8-2-20- 5=72 + 18=24 + 40 -81 + 8-52+ 27=90 - 9=95-58 -19+ 66-14- 9=42 + 27=32 - 24 -67-4-60+ 22 =73 + 26=44 - 44-84 - 22 -68+ 17=87-28 =58 - 18-56 - 47 -64+ 28 =59 + 1 =63+ 24 -95 - 38-40- 33=78 - 11 =37 + 48-4+ 55-19+ 38 =65 - 13=27+ 70-28+ 63 -57+ 25=50 + 22 =7+ 54 -

21、51 + 16-96- 33=64 + 31 =16+ 79-37+ 48 -4 + 55=19+ 38=65- 13-27+ 70-28+ 63=57+ 25=50 + 22-7+ 54 -51+ 16=96 - 33=64 + 31-16+ 79 -97- 73=80-38 =63 - 46-99 - 64 -口算天天練（9）時(shí)間：正確：題錯(cuò)誤：題97- 97=85+ 11 =100 - 88 =58 + 12=45- 6=14-8=62 + 26=92 - 82=47- 24 =96 - 73=34 + 36=81 - 48 =63- 47 =18-9=37+ 39=14+ 82=63-

22、 6013+ 41 =31 + 30=8+ 59=16+ 68 =8+ 58=51 + 32 =29+ 21 =55- 20=41 + 54=30 + 56=72 - 51 =80- 78 =21 + 46=37 - 16=62 + 10 =34+ 39=77-57=60 + 13=82 - 48 =7 + 48 =85 - 42=9+ 58 =53 - 42 =74+ 8 =100-58 =90 - 64=87-36 =58- 42 =49 - 38 =31 + 42=81 - 35 =54+ 13=88 - 45=88 - 72=38 - 12 =55- 48 =73 + 26=23 +

23、60=15+ 66 =88+ 9=63 + 5=46+ 33=17+ 42 =92 - 7=54 - 50=51 + 18 =70 + 17=72 - 13=14+ 75=53 + 25=77+ 2 =38+ 22 =46 + 39=24 - 21 =79 + 8 =56- 2=53 + 29=16+ 52 =39 + 50=87+ 8=47 - 40=87-74=25- 12=35- 33=99 - 57=39 + 50=55 - 16 =93- 53=16+ 63=31 + 68=11 + 87 =41-2=50 - 1 =16+ 57=10+ 89=87- 31 =90 65=51 -

24、2=98 - 27=83- 82 =17+ 68 =61 - 36=62 - 41 =口算天天練（10）時(shí)間：正確：題錯(cuò)誤：題67- 66=42 + 55=77 + 7=97-7875- 37=16+ 72 =20 + 43=29+ 49 45+ 44 =67-36=51 + 17=88 - 25 99- 87=67-66=42 + 55=77+ 7 97- 78 =75 - 37=16+ 72=20+ 43 29+ 49=45 + 44=67 - 36=51 + 17 88- 25=99 - 87=39 - 34=67- 11 86- 54=18+ 73=56 + 14=16+ 45 75+

25、 10=15+ 72 =55 + 44-98 - 55 50- 3=25 + 73=63-32 -53 - 1075- 25=99 - 43=24 - 1 =94 + 351 + 44=20+ 69=9+ 5034 + 5429- 16=21 + 68 =64 + 342+ 494 + 61 =29 - 5=81-31 39 + 5977- 71 =33 + 66=20 + 3850 - 30 57+ 3=80 - 70=21-2078 - 4053+ 41 =36 - 5=69+ 1960 - 2874- 46 =89-9=53+ 1377+ 1526- 3=23 + 46=3+ 71 77

26、+ 14 88- 15=25-24=90 - 21 83-56 70- 65=61 + 36=64 - 1699 - 16 30+ 63=49 - 44=31 - 868 + 2350+ 33=100-83 =73 - 3767 + 1791-51 =59 - 38 =81 + 929+ 2479- 10=73 - 61 =24 - 827+ 43口算天天練（11）時(shí)間：正確：題錯(cuò)誤：58- 5=80 + 16=99-34=28+ 65=37+ 33=80 46=53 - 29=91 - 60 =82- 74=35 - 12 =44 - 26=45 + 13 =94- 40=92 - 2=71

27、 - 68 =75 - 43=25+ 35=39 - 11 =12 + 62=67+ 2 =27+ 54=72 - 35=63 + 6=85-28=80- 16=49 - 2=91 + 8 =72 - 17=12+ 81 =93 - 70=65 + 17=51 + 25 =65 65=5+ 74=3+ 61 =33 - 14=13- 7=59 + 40=4+ 81 =51 + 19=64 - 17=65 + 17=27 + 49=65 + 17 =51 + 25=65 65=5+ 74 =3+ 61 =33- 14=13-7=59+ 40=4+ 81 =51+ 19=64 - 17=65 +

28、17=27+ 49 =6 + 81 =31 - 18=65- 18 =25+ 52=52 - 48 =71 - 66=20 + 63=50 - 14 =16+ 75=5+ 50=71 - 11 =92 - 43=79- 35=16+ 36=29 + 41 =77-21 =3 + 47 =24 - 20=93-87=93 - 57=52+ 30=79 - 8=10+ 69=76 + 11 =56- 40=59 - 8=3+ 91 =94 48 =58+ 18 =54 - 19=34 - 25=35 + 38 =93- 26=19-5=69+ 6 =72 + 12 =97- 55=69 - 25=

29、53 + 47=54 - 30 =62+ 26=20+ 78 =16+ 50=79 - 73 =口算天天練（12）時(shí)間：正確：題錯(cuò)誤：題17+ 73 =97-70 =76 + 23=60 - 53 =80- 75=47- 11 =88 - 88=54 + 13 =94- 24=53 + 33=70 + 18=52 + 12 =59- 7=56 + 7=32 - 15=60 + 3=49- 4=58 + 21 =88- 15=37-20=79- 34 =41 + 56=41 19= 96 54 =28+ 69=50 + 1 =27+ 30=30 + 28=41-28 =100-94 =63 -

30、35=77 + 6 =38- 37=71 + 14=76 + 18=3+ 73=57- 57=12-7=93-43=1 + 83=60- 25=88 - 27=55 - 14=31 - 15 =66 46=90 - 46=45 - 3=100- 9 =61-50=10+ 69=88 + 12=88 - 12 =35- 6=85 + 11 =45+ 30=63 - 29=82- 46=67+ 33=59 + 4=17+ 42=60- 13=100-21 =39 + 47=97 - 9 =38- 17=50 - 44=11- 11 =51 - 30 =15+ 43=100-79 =82 - 54=99 - 23