三冊(cè)口算練習(xí)

1、口算練習(xí)一一 請(qǐng)認(rèn)真書寫把加法變成減法0+()=53()+1 = 1003+()=53()+6=1007+()=531+()=43()+2=714+()=33()+6=719+()=647+()=53()+3=627+()=70()+6=627+()=747+()=63()+10=917+()=90()+7=868+()=868+()=66()+9=977+()=38()+8=274+()=537+()=71()+9=275+()=53()+9=979+()=628+()=91()+9=866+()=24()+6=538+()=628+()=32()+9=517+()=100()+6=418+

2、()=538+()=71()+9=338+()=53()+6=515+()=847+()=27()+10=539+()=93()+6=866+()=837+()=86()+9=623+()=86()+4=909+()=547+()=51()+9=714+()=51()+5=1005+()=717+()=14()+9=605+()=14()+6=713+()=628+()=51()+9=906+()=53()+8=537+()=277+()=62()+1=608+()=71()+9=349+()=868+()=71()+2=708+()=53()+10=518+()=979+()=87()+3=

3、818+()=14()+7=628+()=3410+()=53()+6=754+()=62()+4=539+()=618+()=97()+6=827+()=86()+5=648+()=8620+()=27()+6=908+()=27()+6=518+()=97口算練習(xí)二請(qǐng)認(rèn)真書寫請(qǐng)認(rèn)真書寫加法變減法，減法變加法或調(diào)換位置8+()=97()-5=5086-()=15()-10=706+()=8683-()=71()+5=9195-()=62()+6=9775-()=5370-()=30()+2=9771+()=81()-10=1027-()=427+()=91()-10=803+()=53()+

4、2=6253+()=9771+()=86()+6=9114+()=97()+4=7091-()=8697-()=27()+3=7053+()=91()-7=7151+()=6210+()=72()+5=1586-()=53()+2=539+()=915+()=27()-仁 8671+()=91()+5=10091-()=1497-()=53()-3=602+()=90()-10=2091-()=272+()=100()+10=2086-()=10()-6=7162+()=9162+()=86()+6=10071+()=99()-7=6291-()=7186-()=14()-5=80100-()

5、=6()+10=9171-()=5390-()=5()+7=70100-()=5()-10=5010+()=274+()=14()+3=1420-()=10()-仁 1486-()=6253-()=3()-10=9014-()=2()+9=10053-()=3091-()=27()-4=772+()=86()-8=8810+()=865+()=90()+3=271+()=71()-10=6662-()=614+()=27()+2=6280-()=2()-3=1427-()=786-()=10()-仁 1477-()=62()+1=7186+()=9153+()=86()-9=9091-()=1

6、0()+7=8015+()=27口算練習(xí)三請(qǐng)認(rèn)真書寫和-加數(shù)=加數(shù) 被減數(shù)-差 減數(shù)，減數(shù)+差=被減數(shù)()+3=71()+4=7193-()=1()-4=5314+()=97()+7=41()+8=4691-()=27()-3=863+()=27()+7=55()+2=7180-()=5()-5=97()+1 = 100()+5=71()+8=6227-()=7()-4=86()-4=14()+3=62()+8=1591-()=10()-9=7127-()=14()+9=14()+4=5390-()=4()-仁 97()+4=14()+10=97()+6=7170-()=3()-4=625+(

7、)=27()+6=62()+4=6297-()=27()-2=1562+()=86()+8=14()+7=7186-()=71()-3=6297-()=27()+6=45()+9=9791-()=86()-8=625+()=15()+9=62()+5=6260-()=5()-7=715+()=100()+6=53()+9=5391-()=15()-6=53()+86=91()+9=71()+7=8690-()=2()-仁 14()+7=97()+6=24()+9=8670-()=5()-5=1582-()=62()+7=53()+5=53100-()=7()-9=10()-4=15()+8=8

8、6()+10=2781-()=4()-4=1577-()=53()+7=62()+9=1591-()=7()-3=5386-()=10()+10=91()+9=2755-()=1()-4=14()+5=27()+8=71()+10=9119-()=0()-2=218+()=14()+8=27()+5=1450-()=5()-8=7199-()=62口算練習(xí)四()+9=10+3314+8=7+()5+()=6+707+()=9+605+()=9+1025+8=6+()14-4=()+6()-3=86-509+()=91-1038+9=()-1016+()=()-17+()=6+50()+9=71

9、+208+()=15-37+()=4+9077+6=9+()9+()=91-20()+7=62+30()+5=4+809+()=10+809+()=15-510+()=9+40()+6=10+305+()=15-29+()=14+407+()=6+807+()=71+20()-5=4+609+()=53-208+()=4+704+()=9+20()+2=3+8053+仁()+9()+7=14-25-()=7-49+()=10+707+()=8+809+()=97+14+()=8+202+()=27+2014+7=5+()()+4=9+709+()=4+807-3=14-()10+9=8+()5

10、+()=9+6014-2=8+()( :)+8=10+201 7+8=()+37+()=91-262-()=10+403+()=7+507+()=4+80()-2=5+908+()=6+70()+4=7+504+()=10-28+()=15+205+9=7+()62+2=7+()8+()+3=27()+6=15-253+()=62+715+3=()+891-()-仁 62()+6=7+805+()=91-20()-4-2=625+()=14-247+8=6+()15-()=14-297-()=4()-8=14-315+5=10+()()+6=27+291-()+2=277+8=()-354+6

11、=()-8()+3=62+215+2-()=14()+8=4+9064+6=()+33+()=91-210+4-()=2口算545+7+20 一84- (50+7)=75- (46-6 )=45+8+6=56- (30+8 )=1+70-4=69+3-8=27+40-9=64+9-10=60- (4+8)=58- (9+40 )=34- ( 5+8)37-8+40=15+7+6=25+8+30=28+5-7=46+8-7=20+49-10=72- (8+7) =70- (6+9)61- (9+30) =6+66-5=69+3-40=36+8-40=6+59+5=8+57+4=46-40+86=

12、70+2-6=25-7+60=94-1-60=5+95-30=45- (8+10)70+8-9=22- (8+9) =83- (7+6) =14+70-8=56- (40-8)=10+59-8=20+67-8=9+14+5=81- (7-6) =3+44-30=59- (20+3 )=80- (2+7)35+4+3=43+7+2=8+53-60=97-9-40=28- (9+5) =95-6-50=90- ( 8-4)=90-1-8=47+1+20=25- (9+7) =51+ (9-5) =51- (5+7)50+32-8=80+4-6=43-40+89=73-8-50=24+40+6=14

13、-7+67=31+9-2=40+9+4=48- (8+9)=4+56-3=62- (7+30 )=10-5+80=30+7+6=12-8+96=8+82-4=32-7-10=60- (8-8)=6+54+30=100-90+80=45- ( 9-8)18+40-9=58-50+74=47- (8+6) =18+60-9=口算 687- (40-9)=8+54+7 二65-30+8 二30+ (40-3)=30-6+60=43- (30+7)=54-4-50= 64+8+10=86- (70+9)= 68+5-8=88- 8-40=9+ (56-7)=58+5+9=80-7-6=35+40-1

14、=47-8-9=8+73-80=36- (5+9)=27+8+8=45- (9+7)=16+ ( 80-60 ) =41- (2+8)= 20+39+6= 47- (6+5)= 73+7-8= 95-8-40= 26+3+7= 70-30+60= 7+36-4= 86-80+45= 63-(3+8)= 55+ (7+6)= 38-4-9= 5+34-8= 70- ( 4+14 ) = 18+5+20= 76- (6-2)= 81+9+4= 82- ( 50+7 ) = 17+6-10=71-9-40=6+ ( 30-8 ) =59- (3+10)=82+7-60=80-5-4=56+ (30-

15、9)=12+6+70=1+90-5=67- (9-8)=48+3-7=31-6-8=75+ (7+4)=82- (9+4)=58+6-9=93- (40-5)=37+5-8=52+40-9=26+5+20=60- ( 40-8 ) =8+ (34-10)=26+3+20= 53-9-10= 5+ ( 43-8 ) = 31-(7+9)= 65+7-4= 58-(4-2)= 82- ( 60-6 ) = 32+40+9= 43- (6+8)= 26+5+9= 53- (8-3)= 6+43+20= 31- (8-5)= 7+65-50= 58- 4-40= 34+20-8= 59- ( 30+4

16、 ) 8+36-7= 50-5-8= 27+6+4=口算練習(xí)77=70-()()+6=1527-()=58+()=8662-()=104=90-()91-()=9()+4=91()+5=6291-()=1070=5+()15-()=991-()=53+()=62()+53=9180=()-17+()=5315+()=91()+4=71()+9=10091=9+()5+()=6227+()=918+()=6210+()=1515=6+()7=()-10()+4=979+()=865+()=9720=10+()()+8=7197-()=5()+5=9199-()=629=91-()2+()=7197=9+()9+()=535+()=2710=()-85+()=624+()=627+()=5391-()=953=7+()14=6+()89-()=8()+4=97100()=086=()+9100=7+()()+5=629+()=9714+()=9714=7+()()+7=934+()=53()+2=1003+()=27100=1+()8+()=1002+()=915+()=15()-4=1471=()-44+()=100()+3=71