21120能除尽的数?50至100以内的两位数.

7×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝
2005-2006学年度三年级数学期末复习口算题（一）
70÷7= 20×10= 320÷5≈ 54×70≈ 251÷4≈ 6300÷7=
131÷4≈ 50×8= 85-45= 0÷5= 280÷4= 60×40=
840-30= 2700÷9= 99×31≈ 3.1＋2.7= 131÷4≈ 50×8=
7.8-1.8= 350÷5= 630÷9= 131÷6≈ 10×80= 65-56=
431÷6≈ 15×6= 4.8-0.4= 6.1＋0.7= 91×18≈ 257÷4≈
44÷4= 20×40= 210-30= 34+28 = 63- 63÷9= 120÷3×
2005-2006学年度三年级数学期末复习口算题（二）
800÷8= 40×70= 300÷4≈ 59×72≈ 251÷5≈ 630÷7=
131÷6≈ 0×108= 45-18= 0÷15= 120÷4= 30×40=
640-70= 1800÷9= 99×39≈ 5.1＋2.6= 411÷4≈ 15×20=
7.3-1.8= 250÷5= 6300÷9= 431÷6≈ 20×80= 78-56=
491÷8≈ 14×6= 4.8-4.4= 6.1＋4.7= 91×19≈ 367÷4≈
55÷5= 10×40= 211-30= 134+28 = 50×40-100= 12×20÷
2005-2006学年度三年级数学期末复习口算题（三）
三年____班 姓名______
270÷9= 20×11= 120÷5≈ 44×17≈ 351÷4≈ 420÷7=
231÷4≈ 50×80= 73-45= 0÷25= 1600÷4= 20×40=
840-32= 540÷9= 89×31≈ 0.1＋0.8= 371÷4≈ 0×28=
8.3-1.8= 2000÷5= 180÷9= 131÷6≈ 40×80= 85-51=
531÷6≈ 10×60-= 4.5-4.5= 6.8＋0.2= 41×19≈ 250÷4≈
270÷3= 11×50= 210-30= 68+28 = 25+25×2= 30÷3×10=
[center][b]2005-2006学年度三年级数学期末复习口算题（四）[/b][/center]
三年____班 姓名______
100÷1= 30×70= 100÷5≈ 19×72≈ 251÷6≈ 140÷7=
234÷6≈ 120×0= 445-15= 0÷85= 200÷4= 300×40=
740-70= 2700÷9= 91×33≈ 4.1＋2.4= 419÷4≈ 14×20=
7.8-1.8= 1000÷5= 360÷9= 338÷6≈ 100×80= 98-56=
491÷8≈ 14×6= 4.1-3.1= 6.8＋0.7= 11×19≈ 167÷4≈
150÷5= 10×40= 100-30= 96+28 = 51+45-28= 10×20+34=
[center][b]2005-2006学年度三年级数学期末复习口算题（五）[/b][/center]
三年____班 姓名______
70÷7= 20×10= 3200÷5≈ 54×70≈ 251÷4≈ 6300÷7=
131÷4≈ 50×8= 85-45= 0÷5= 280÷4= 60×40=
840-30= 2700÷9= 99×31≈ 3.1＋2.7= 131÷4≈ 50×8=
7.8-1.8= 350÷5= 630÷9= 131÷6≈ 10×80= 65-56=
431÷6≈ 15×6= 4.8-0.4= 6.1＋0.7= 91×18≈ 257÷4≈
44÷4= 20×40= 210-30= 34+28 = 63- 63÷9= 120÷3×20=
[center][b]2005-2006学年度三年级数学期末复习口算题（六)[/b][/center]
800÷8= 40×70= 300÷5≈ 59×72≈ 251÷5≈ 630÷7=
131÷6≈ 0×108= 45-18= 0÷15= 120÷4= 30×40=
640-70= 1800÷9= 99×39≈ 5.1＋2.6= 411÷4≈ 15×20=
7.3-1.8= 250÷5= 6300÷9= 431÷6≈ 20×80= 78-56=
491÷8≈ 14×6= 4.8-4.4= 6.1＋4.7= 91×19≈ 367÷4≈
55÷5= 10×40= 211-30= 134+28 = 50×40-100= 12×20÷3=
http://zhidao.baidu.com/q?word=%CA%FD%D1%A7%BF%DA%CB%E3%CC%E2&ct=17&pn=0&tn=ikaslist&rn=10一堆呢
17×40＝ 100－63＝ 3.2＋1.68＝ 2.8×0.4＝
14－7.4＝ 1.92÷0.04＝ 0.32×500＝ 0.65＋4.35＝
10－5.4＝ 4÷20＝ 3.5×200＝ 1.5－0.06＝
0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝
1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17＝ 32.8＋19＝ 5.2÷1.3＝ 1.6×0.4＝
4.9×0.7＝ 1÷5＝ 6÷12＝ 0.87－0.49＝

(1)x^2-9x+8=0 答案：x1=8 x2=1
(2)x^2+6x-27=0 答案：x1=3 x2=-9
(3)x^2-2x-80=0 答案：x1=-8 x2=10
(4)x^2+10x-200=0 答案：x1=-20 x2=10
(5)x^2-20x+96=0 答案：x1=12 x2=8
(6)x^2+23x+76=0 答案：x1=-19 x2=-4
(7)x^2-25x+154=0 答案：x1=14 x2=11
(8)x^2-12x-108=0 答案：x1=-6 x2=18
(9)x^2+4x-252=0 答案：x1=14 x2=-18
(10)x^2-11x-102=0 答案：x1=17 x2=-6
(11)x^2+15x-54=0 答案：x1=-18 x2=3
(12)x^2+11x+18=0 答案：x1=-2 x2=-9
(13)x^2-9x+20=0 答案：x1=4 x2=5
(14)x^2+19x+90=0 答案：x1=-10 x2=-9
(15)x^2-25x+156=0 答案：x1=13 x2=12
(16)x^2-22x+57=0 答案：x1=3 x2=19
(17)x^2-5x-176=0 答案：x1=16 x2=-11
(18)x^2-26x+133=0 答案：x1=7 x2=19
(19)x^2+10x-11=0 答案：x1=-11 x2=1
(20)x^2-3x-304=0 答案：x1=-16 x2=19
(21)x^2+13x-140=0 答案：x1=7 x2=-20
(22)x^2+13x-48=0 答案：x1=3 x2=-16
(23)x^2+5x-176=0 答案：x1=-16 x2=11
(24)x^2+28x+171=0 答案：x1=-9 x2=-19
(25)x^2+14x+45=0 答案：x1=-9 x2=-5
(26)x^2-9x-136=0 答案：x1=-8 x2=17
(27)x^2-15x-76=0 答案：x1=19 x2=-4
(28)x^2+23x+126=0 答案：x1=-9 x2=-14
(29)x^2+9x-70=0 答案：x1=-14 x2=5
(30)x^2-1x-56=0 答案：x1=8 x2=-7
(31)x^2+7x-60=0 答案：x1=5 x2=-12
(32)x^2+10x-39=0 答案：x1=-13 x2=3
(33)x^2+19x+34=0 答案：x1=-17 x2=-2
(34)x^2-6x-160=0 答案：x1=16 x2=-10
(35)x^2-6x-55=0 答案：x1=11 x2=-5
(36)x^2-7x-144=0 答案：x1=-9 x2=16
(37)x^2+20x+51=0 答案：x1=-3 x2=-17
(38)x^2-9x+14=0 答案：x1=2 x2=7
(39)x^2-29x+208=0 答案：x1=16 x2=13
(40)x^2+19x-20=0 答案：x1=-20 x2=1
(41)x^2-13x-48=0 答案：x1=16 x2=-3
(42)x^2+10x+24=0 答案：x1=-6 x2=-4
(43)x^2+28x+180=0 答案：x1=-10 x2=-18
(44)x^2-8x-209=0 答案：x1=-11 x2=19
(45)x^2+23x+90=0 答案：x1=-18 x2=-5
(46)x^2+7x+6=0 答案：x1=-6 x2=-1
(47)x^2+16x+28=0 答案：x1=-14 x2=-2
(48)x^2+5x-50=0 答案：x1=-10 x2=5
(49)x^2+13x-14=0 答案：x1=1 x2=-14
(50)x^2-23x+102=0 答案：x1=17 x2=6
(51)x^2+5x-176=0 答案：x1=-16 x2=11
(52)x^2-8x-20=0 答案：x1=-2 x2=10
(53)x^2-16x+39=0 答案：x1=3 x2=13
(54)x^2+32x+240=0 答案：x1=-20 x2=-12
(55)x^2+34x+288=0 答案：x1=-18 x2=-16
(56)x^2+22x+105=0 答案：x1=-7 x2=-15
(57)x^2+19x-20=0 答案：x1=-20 x2=1
(58)x^2-7x+6=0 答案：x1=6 x2=1
(59)x^2+4x-221=0 答案：x1=13 x2=-17
(60)x^2+6x-91=0 答案：x1=-13 x2=7
(61)x^2+8x+12=0 答案：x1=-2 x2=-6
(62)x^2+7x-120=0 答案：x1=-15 x2=8
(63)x^2-18x+17=0 答案：x1=17 x2=1
(64)x^2+7x-170=0 答案：x1=-17 x2=10
(65)x^2+6x+8=0 答案：x1=-4 x2=-2
(66)x^2+13x+12=0 答案：x1=-1 x2=-12
(67)x^2+24x+119=0 答案：x1=-7 x2=-17
(68)x^2+11x-42=0 答案：x1=3 x2=-14
(69)x^20x-289=0 答案：x1=17 x2=-17
(70)x^2+13x+30=0 答案：x1=-3 x2=-10
(71)x^2-24x+140=0 答案：x1=14 x2=10
(72)x^2+4x-60=0 答案：x1=-10 x2=6
(73)x^2+27x+170=0 答案：x1=-10 x2=-17
(74)x^2+27x+152=0 答案：x1=-19 x2=-8
(75)x^2-2x-99=0 答案：x1=11 x2=-9
(76)x^2+12x+11=0 答案：x1=-11 x2=-1
(77)x^2+17x+70=0 答案：x1=-10 x2=-7
(78)x^2+20x+19=0 答案：x1=-19 x2=-1
(79)x^2-2x-168=0 答案：x1=-12 x2=14
(80)x^2-13x+30=0 答案：x1=3 x2=10
(81)x^2-10x-119=0 答案：x1=17 x2=-7
(82)x^2+16x-17=0 答案：x1=1 x2=-17
(83)x^2-1x-20=0 答案：x1=5 x2=-4
(84)x^2-2x-288=0 答案：x1=18 x2=-16
(85)x^2-20x+64=0 答案：x1=16 x2=4
(86)x^2+22x+105=0 答案：x1=-7 x2=-15
(87)x^2+13x+12=0 答案：x1=-1 x2=-12
(88)x^2-4x-285=0 答案：x1=19 x2=-15
(89)x^2+26x+133=0 答案：x1=-19 x2=-7
(90)x^2-17x+16=0 答案：x1=1 x2=16
(91)x^2+3x-4=0 答案：x1=1 x2=-4
(92)x^2-14x+48=0 答案：x1=6 x2=8
(93)x^2-12x-133=0 答案：x1=19 x2=-7
(94)x^2+5x+4=0 答案：x1=-1 x2=-4
(95)x^2+6x-91=0 答案：x1=7 x2=-13
(96)x^2+3x-4=0 答案：x1=-4 x2=1
(97)x^2-13x+12=0 答案：x1=12 x2=1
(98)x^2+7x-44=0 答案：x1=-11 x2=4
(99)x^2-6x-7=0 答案：x1=-1 x2=7
(100)x^2-9x-90=0 答案：x1=15 x2=-6
(101)x^2+17x+72=0 答案：x1=-8 x2=-9
(102)x^2+13x-14=0 答案：x1=-14 x2=1
(103)x^2+9x-36=0 答案：x1=-12 x2=3
(104)x^2-9x-90=0 答案：x1=-6 x2=15
(105)x^2+14x+13=0 答案：x1=-1 x2=-13
(106)x^2-16x+63=0 答案：x1=7 x2=9
(107)x^2-15x+44=0 答案：x1=4 x2=11
(108)x^2+2x-168=0 答案：x1=-14 x2=12
(109)x^2-6x-216=0 答案：x1=-12 x2=18
(110)x^2-6x-55=0 答案：x1=11 x2=-5
(111)x^2+18x+32=0 答案：x1=-2 x2=-16

the birth of jesus
in nazareth,a city of galilee.the virgins name was mary was betrothed to joseph.before they came together,she was found with child of the holy spirit.joseph her husband was minded to put her away secretly.while he thought about these things,gabriel,an angel of the lord appeared to him in a dream and told him did not be afraid to take mary as wife.and mary will bring forth a son,and he shall call his name,jesus,for he will