2020新版苏教版三年级下册数学口算专项练习

1、1/ 7 苏教版小学数学三年级下册口算题 1.40-2=70+90=70+2=140- 7=70+50=421 - 7 52+35=720 - 8=9 X 799 9 X 799=80 - 4=26+9二 2.45 X 28160 60=160 - 8=150+40=2100 - 3=50 X 80=28 - 7=500 X 4=24 - 8=12 X 20=35 - 5=50-5 3.3 X 800)420 +P3X 22&480 +红58 + 33 = 420-20= 93- 3 880 +红 4.45+45=50 X 90=42 X 985X 5+52=90+30=90+90=1

2、7K30=50+80=110- 80=50+90=400+300= = 80X 80= 10X 47= 30X 70= 0- 93= 600-6= 10X 36= 660-3= 6.43+38=720-=836+56=23X3=0 10X 7=3 90X 5=0 800-=86000+2000= 120 X = 640- = 52 X 94 250 - 5= 7.63 -9=280-4=50X50=810-9=300X6=25+41=140-7=20X31=90- 65=52 X 44 74 X 54 41 X 75 8.40 X =131 - 690(=57 + 29 = 125 - 24X

3、 9-6=90 - 9=1600 - 2=71 68=600-1=1500-3=9X300= 9.3X20=0620-=2660-=2640-=8880-=47500-500=0-9=1 12X4=3X31 = 58+ 26= 120X4= 0X 97= 10.360 -=944X=2960-=332X2=2X44=0 460-=270+500=3X3=3 280-=4 9X 40=0 3X 33=0 690-3= 11.11 X4=0900X=5 67-49=200-=48000-1000=20X2=457+29=540-6 = 10X 73= 10X 58= 0- 49= 34X 20=

4、12.80 X 9=030 X 7=0 1 20 X =4 640 -=8720 - =91 0 X 3=4 65X 1=0 660-=3700 X 5 =41X 20= 7000- 399030 X 3=5.1200-200= 11 X 7 80 - 46= 82 - 9 21 X=0-=665X 1=0 540-=622X 40 2/ 7 13.10 X 4730 X 2纟 660 - 4 5900 5000= 11 X 470 X 48 10 X 36 6000+ 2000= 80X 8029 + 14= 80X 50 200 X4 14.36 + 56 = 88X 10 600-622

5、X 30 400+ 600= 34 + 29= 800-821 X 30 720-8 33 X 30 32 X 20 87X 10 15.500 + 40 = 22X 40440-433X 20320-483- 9729= 0-93 640-2 30 X 50 75 + 18 = 600 + 700 = 0=130-2= 17.310 X=3390-=3230X=311X4=8255=310X=3720-=94700700= 600-= 48+ 28= 641 - 8480-8 90-3180-3300-5930-3 19.800 -4 60 15= 900 -3450-9 360-637 +

6、 56= 32 X3 70 X7 1200 715= 299 - 650X7X 37 20.53 14 = 17+ 27= 840-42X 14140 -2 660-67X 800 7X 700840-2 =430X2 540-9 31X3 21.13 XE34 + 56 = 96 - 3 2 X 330 50 X 6 159 - 4 620-32X 800 960-3 1500 903= 1807 800= 63-3 22.26 + 57 = 800-8 33+ 57 = 600 X337 + 8= 480-8 630-3 62 33= 500 + 500= 33X2 800-2 700-8

7、 23.0 -47560-7440-493-324X20-54 23X312X30 7X80 48X10 =40X 40= 40X 1 = 24.89 -3 562 - 7241 - 2-30-24X 2-3 0- 54(23-3) X33X 307X 81 16.210 -7=3X8= -X 10=180 - 3=80 X 99 280 - 4=90 X 100=8 - 1 X 8=20+90=8 18.7 X =880 - = 879 - 89X = 08 + 17 = 54+ 28= 42 X3 1700 800= 3/ 7 25.23 X 304 / 7 30 x 70= 26.70

8、x 挡 10 x 19= 27.28 x W 20 x 3W 28.31 x 2W0 30 x 8W0 29.12 x 4W0 33x 3W0 30.24 x 2W0 23x 3W0 31.60 x 4W0 70 x6W 32.2035W 5/ 7 702 X653X 10 60 X 50 30X 21 10X 74 30X 40 20X 70 11X 50 20X 50 12X 10 90X 20 22X3 44X 20 33X 10 220X3 41 X 20 20X 41 50X 30 723 - 9 4X 90 90X 30 6/ 7 2X 31 4X 900 45 + 35= 900

9、 X6 84 x 10 60 x 70 70 x 80 7x 11 50 x 10 24x 20 28x1 30 x 30 10 x 36 31x2 20 x 13 60 x 90 12x4 50 x 90 22x 40 21x 30 6x 600 0 x 45 7/ 7 10 x 89= 60 x 60= 21 x 40= 33 x 20= 2x 310= 32 x 20= 34 x 20= 9x 8010 10 x 6&40 x 5050 x#(24 x212x 2830 x 2120 x#3 x 3& 30 x 33= 21 x 4014 x=20jx 9839x 182

10、1 x 222 x =3(22x490 x 48200 x 310 x83x 700= 50 x780 800 x769x81013x380 30 x280 40 x9040 x8704819870 x680 84x133x30 8 31x 208 33.70 x 3802x 482 86478 5x 980 22x 380 6x 5080 8x 780 42x 280 400300 8 5x 9008 10 x 338 22x08 34.80 x 8201 x80-286x 6822x 48 44+ 20= 41 x 394382 + 37 = 420 宁8 300 宁840 x 18 35

11、.360 = 10 x 3440 x 9090 x 60 490-720 x 34300 x380 x465xo 330-3 250 -5680 808 36.21 x 4080 x 4010 x 37 20 x 50 2000 + 3008880-2 70 x 20400-4 0 x 66 50 x 30 640-8880-4 37.400 + 300834+ 398360-699x 10 12x 2030 x 80 41 x 2097x 10 700-733x300-59 11x80 38.200 -4 31 x 20600 + 9084700 700= 44 37= 40 x 1284

12、47 = 630-7 8 71 238 0-48 31 x 30= 21x 38 39.43 OX 2&75+ 18= 23+ 48= 90X 3830X 1246+ 24= 0-7纟42X 20 =100-5 8/ 7 10X 52 350-5 40.5229=240X=252+39=400-=8480-=833X 3=0 50X5=800X=360X 50 = 410X2= 41 X 20= 310X3= 41.20 X 23440- = 30X 3=0X 3=10X 3=29+ 61 = 410- 730=3J0X 9= 80 X 3= 20 X 1=90 X 5= 42.420

13、 -=300- = 240- = 69X 1=22X 4= 33X 2= 900- = 810- = 630-9 =30X 23= 330X3 0X 3= 43.750-50 = 480-8 5010 + 20037748= 300-5 300 + 700= 420-2 820-2 70 X 114500-500= 20 X 40400-4 44.49 + 33 = 707-723 X3 78- 36= 11 X4 230 X3 46 - 9 -5=90+20=17- 8=180-80=350 - 5= 45.40 X 7043+ 38= 90 X 50 84 65 = 43 16= 10 X 80 51 X 825+40 = 88X 10 700 X581 X 9940X70 46.440 -432X348-4 540-9 90-9 13X3600X7120X3480-2 39-3560-8990-3 47.420 弓 63-3 160-4 800+ 700= 690-3 58 0= 2X 44048-2480-2 =60 X 5 2 X 44= 840-4 48.0 - 510X 85 70-75X