三年级下学期口算练习题
(一)
666?3= 0 X 4= 36 , = 36?3=
68,35= 56 , 42= 25?5= 270?9= 96?6= 20 X 4= 25 X 4= 120?6= 25?3= 10 X 8= 420?7= 40X9= 36X30= 24, 38= 12X5= 50X40= 87+23= 488?8= 26X11= 52, 28= 320, 140=
(二)
300?6= 12X4= 8?8= 59X0= 90X9= 10X5= 0X59= 12X40= 10?5= 80X2= 30?5= 15X3= 20X3= 90X4= 80?4= 13X20= 30X5= 620,420= 707?7= 80 -25= 5X80= 20X40= 60X20 50X3= (40?8)=
(三)
= 63?7= 90?3= 40?8= 20 X 20
3X 2= 41+39= 3?3= 9+27= 69+12= 30?3= 8?2= 1 X 6= 90?2= 42?7= 32?4= 80?2=
9X 7= 16?8= 10?2= 5 X 5= 40?5= 370+80= 9?9= 490?7= 100+30= (四)
72+28= 470,70= 16?4= 8 X3=
790+40= 30X12= 37+23= 310,70= 12 X3= 24?4= 290+70= 24X2= 9+6=
410+30= 31 X 5= 9 X 6=
750,70= 12X6= 12?6= 90,67= 18 X21? 87+12= 170+90= 11 X19? 42+39= ( 五 )
400+40= 302?3? 75,37= 70+600= 419?7? 903?3= 12 X 3= 250?5= 10?5= 56?8= 35?5= 121?3? 60 X 80= 15 X 40= 30 X 50= 59 X 60?
22X30= 21X60? 39X70? 207X3= 700?9? 0?9? 50X3= 73,24= 1400?7= (六)
40X20= 60X1,= 41 X70= 15X40= 70X90= 12X40= 45X20= 35X20= 40X20= 30X12= 21X30= 180?6= 560?7= 60X80= 15X40= 30X50= 22X30= 21X60? 39X70? 59X60?
1600?4, 99?9= 50 X 3= 347, 90= 999?9= (七)
3= 70X90= 40X20= 60X11= 150? 70X 90= 12X 40= 45X 20= 35X 20= 40X20= 30X12= 21X30= 366?6=
446?2= 284?2= 125- 25= 810?9= 560?7= 60 X 90, 16 X 5= 11 X 80= 430-70= 270+300, 30+700= 500 X 7=
135+8= (八)
2700?9= 34+48= 30X 90= 0?75=
420?6= 95?5= 305?5= 408?8= 6300?9= 42 X 30= 97+36= 50+90= 783,0= 34X0= 73,29= 37X0=
720?9X5= 986?2= 401+99= 130?3? 550?7? 118?6? 24 X37? 87X21? 47X58?
(九)
560?7= 60 X 80= 15 X 40= 30 X 50= 20 X 30= 21 X 60? 39 X 70? 59 X 60? 207 , 3= 600?2= 304 X 3= 35?7= 120?4= 700?9? 126?4? 0?9? 15?7? 99?9= 50
X 3= 341, 59=
73, 24= 31,13= 90 X 9X 0= 60?3,2= 250?5= (十)
900?9= 150?3= 70 X 90= 180?6= 400?2= 60X11= 41X70= 15X40= 70X90= 12X40= 45X20= 35X20= 40X20= 30X12= 21X30= 366?6= 20+5X4= 750,50= 40?5= 720, 67=
660?6= 555?5= 780?2= 632 , 99= 903?3= (十一)
2= 284?2= 40-25= 735-199= 446?
810?9= 700,50= 30?5= 60?6= 369?3= 22 X 19? 446?2= 30 X 5= 305X 4= 213X4= 404X7= 501X7= 210X3= 56?7= 45?9= 55?6? 250?4 ? 43?6 ? 13?4 ? 99X 23? 40X 50=
(十二)
69X 12 ? 26?5 ? 36?3= 55?5= 82?2= 52?4= 76?2= 33?3= 206?2= 484?4= 122?2= 300?5= 1500?5= 2800?7= 900?5= 909?3= 207?2= 92?3= 324?3= 481?2= 380?5= 52X 7= 736?8= 304 X 3= 29X 20=
(十三)
15X1= 25X1= 5X11= 125X1= 15X2= 25X2= 5X12= 125X2= 15X3= 25X3= 5X13= 125X3= 15X4= 25X4= 5X14= 125X4= 15X5= 25X5= 5X15= 125X5= 15X6= 25X6 = 5X16= 125X6= 15X7= 25X7= 5X17= 125X7= 15X8=
25X8= 5X18= 125X8= 15X9= 25X9= 5X19= 125X9= 15X10= 25X10= 5X20= 125X10= 15X11= 25X11= 5X21=
15X 12= 25 X 12= 5 X 22= 15X 13= 25 X 13= 5 X 23= 15X 14= 25X 14 = 5 X 24=
15X 15= 25X 15= 5X 25= 15X16= 25X16= 5X26= 15X17= 25X17= 5X27= 15X18= 25X18= 5X28= 15X 19 25X 19= 5X 29= 15X 20= 25X 20= 5X 30=
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