四年级下册计算口算题(小数点加减).

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1. 5-0.5= 210-^6= 1.2X0. 5= 720 4-30=

3604-60= 90-r 2= 3.1X3= 10004-20=

3. 5+ 4.2= 1-0.9= 1.86X1.1= 4.5-3=

28X6= 2.7-0.4= 4.8X0. 9= 0.36+0. 64=

0. 36+ 0. 64= 60^-5= 1.5X20= 56X30=

3. 5 -2.4= 2. 3+0.6= 5X1.2= 58+36=

2504-2= 210X30= 7.8X4= 7.8-1.1=

560-r 8= 0. 96-0. 3= 2.5X4= 221X3=

1200-7-5= 891^-3= 4.5X3= 5600X7=

1. 2-0.5= 2.5+0. 9二 0.3X1. 3= 50X64=

7. 8+1.6= 0. 39+0.15= 4.2X5= 8. 65—& 31=

78X5= 72X3= 3. 74X0.1= 58X60=

216+3= 20004-40=

1. 5-0.5= 2104-6= L2X0.5= 72230=

3604-60= 904-2= X1X3= 1000-5-20=

3. 6+ 4.2= y 1.86X1.1= 4.5-1=

28X6= 2.7-4.4- 4.8X0. 9= 0.64 二

0.3640.64= 604-5^ 1.5X20= 56X30=

15 -2.4= 2.3+0.6= 5X1.2= 58+36=

250 十 2二 210X30= 7.8X4= 7.8-1.1=

560十沪 0. 96-0.3= 2.5X4= 221X3二

12004-5= Wl-r3= 4. 5X3= 5600X7=

1. 2-0. U 2.5+0. 9= 0.3X1. 50X64^

7.8H.6= 0. 39H). 15= 4,2X5= 8.65-6.31=

78X5^ 72X3= 3. 74X0.1= 58X60=

2164-3s 2000-r 40=

3・ 07-0. 38-1.62 5.03-2.5*0.96 20. 8- (15.98-19) (456-216》*2

2. 5X0. 5= 95 X 20= 240-r3= 14X60=

5.8X0.2 二 2. 9+3.6= 9.4-2.8= 800*

0.7X12= 35X20= 6094-3= 50X16=

6.3X7= 8.6*6. 7= 8.7-6.9= 0. 9+0. 8=

8X1.8= 6.77-1.78= 7.2-6.45= 6404-2=

0.3X4.4二 4.5+8.6= 4.2-1.5= 20X43=

2. 08X7= 15-0.48^ 20X55= 7. 2-6.45=

1.1X8= 4X25= 2.7-1.2= 49. 80+49.20=

0.8X7.62= 0. 39+0.15= 63X20= 3. 40+58. 20=

0.12X8= 3.5 -2.4= 16004-4= 87X100=

4.2X0.1= 0. 96-0.3= 9. 7-2. 8= 4. 7-2. 8二

1.6X3= 7.2-6.45= 154). 48= 61X50=

1.2X0. 6= 4.9+21.6=

2.5X0.5= 95X20= 2402 14X60=

5.8X0.2= 2.9+3.6= 9.4-2.8= 8004-8=

0.7X3.2= 35X20= 6092 50X16=

6.3X7= & 6+6. 7= & 7-6.9= 0.94-0. 8=

8X1.8= 6.77-1. 78= 7.2-6.45= 6404-2=

0.3X4.4= 4.5+8.6= 4.2-1.5= 20X43=

2.08X7= 15-0.48= 20X55= 7.2-6.45=

1.1X8= 4X25= 2.7-1.2= 49. 80+49. 20=

0.8X7.62= 0. 39+0.15= 63X20= 3.40+58. 20=

0.12X8= 3.5 -2.4= 1600" 87X100=

4.2X0.1= 0.96-0.3= 9.7-2.8= 4.7-2.8=

1.6XS= 7.2-6.45= 15-0.48= 61X50=

1.2X0.6= 4.9+21.6=

4・ 7-2.8= 2.7X30= 630-r 9= 4800-5-8=

26O-r2= 7X2.4= 3-1.4= 8844-4=

4. 5-1.3= 1.01X5= 8.65-6.31= 2.6-0. 9=

70X40= 5.1X100= 3.40+58.20= 6404-8=

1.2-0.5= 3.7X4= 0.1*0.6= 0. 96-0. 3=

1.9-0.9= 2.4X8= 280-5-7= 1802

7.4-2.2= 3. 2X0. 4= 1. 5-0. 5= 1624-2=

12X30= 0.5X0. 9= 700-7-7= 8. 3-3. 8=

0. 9+0. 8= 0.4X2. 5= 1-0.9= 2. 3+0. 6=

16X200= 0.16X0. 3= 24X10= 270+3=

15-0.48= 3.18X10= 3204-8= 60X10=

6484-8= 41X0.4= 1-0.3= 49004-7=

40X24= 0.86X0.2=

4.7-2.8= 2.7X30= 630-5-9= 48004-8=

2604-2= 7X2.4= 3-1.4= 8844-4=

4.5-1.3= 1.01X5= 8.65-6.31= 2.6-0. 9=

70X40= 5. 1X100^ 3・ 4CH5& 20= 6404-8=

1.2-0.5= 3.7X4= 0.1+0.6= 0. 96-0. 3=

1.9-0.9= 2.4X8= 2804-7= 1804-6=

7.4-2.2= 3. 2X0•仁 1.5-0. 5= 162T2=

12X30= 0.5X0. 9= 7004-7= 8・ 3-3. 8=

0. 9+0. 8= 0.4X2. 5= 1-0.9= 2. 3+0.6=

16X200= 0.16X0.3= 24X10= 2702

15-0.48= 3.18X10= 3204-8= 60X10=

648 +8= 41X0.4= 1-0.3= 49004-7=

40X24= 0. 86X0.2=

53X30= 12X400= 0.4X3.6= 79+17=

4.6*1.5= 1-0.9= 2.5X40= 6. 7+3.2=

2.6-0.3= 1.8*3.4= 1.35X20= 2.3+0.6=

90-r 5= 17X40= 0.5X0. 28= 240/3=

48X30= 70-31=

4202

24X50= 1.2-0. 5= 5.2X8= 440 壬 4二

15X40= 84-45= 7.2X40= 810-5-9=

96-68= 48X2= 4.3X0.1= 9.6-0.5=

30X21= 2704-H= 0.06X0. 8二 810-5-3=

25X80= 220-^2= 6.2X5= 2132

70X30= 6. 9-0. 7= 3.6X0. 8= 90004-3=

78X2= 4804-4= 0.54X4二 8. 3-2.6=

990 士 9= 1. 5-0. 5=

53 X 30= 12X400= 0.4X3.6= 79+17=

4.6+1.5= 1-0.9= 2.5X40= 6.7+3.2=

2.6-0.3= 1. 8+3.4= 1.35X20= 2.3+0. 6=

90-r 5= 17X40= 0.5X0. 28= 240 子 3=

48X30= 70-31= 6.1X2= 420*3=

24 X 50= 1.2-0.5= 5.2X8= 4404-4=

15X40= 84-45= 7.2X40= 8104-9=

96-68= 48X2= 4.3X0.1= 9.67 5=

30X21= 270-5-9= 0.06X0.8= 8104-3=

25X80= 220*2二 6.2X5= 2134-3=

70X30= 6.9-0. 7= 3.6X0. 8= 9000^-3=

78X2= 480+4二 0.54X4= 8. 3-2.6=

990-r 9= 1. 5-0.5=

84-5-2= 2.7X2= 57+4.02= 600-r6=

31X90= 6X0.2= 3.42+0.48= 0. 9+0. 8=

46X20= 2.6X0. 3= 7.51 + 1.49= 1.08-0.8=

620-180= 0.06X0.9= 30X33二 41X20=

92-r4= 8X3.4= 1-0.3= 1204-2=

1.1+12= 32X0. 7= 2-0.01 = 90-r 5=

4.8-l< S= 25X0.01= 0. 362 64二 2. 3-H). 5=

04-13= 4.1X0.6= 30X18= 19X40=

800X5= 0.04X2= 0-r5= 4.3+0.8=

333+3= 0.74X0.8= 9.6-15= 0. 8-0. 08=

200X60= 3.5X5= 0.61-0.3= 125X8=

7704-7= 4.7X0. 9= 6-0.5= 650-r 5=

0. 837-0. 837 = 3.46X11=

84-5-2= 2.7X2= 57+4.02= 600-r6=

31X90= 6X0.2= 3.42+0.48= 0. 9+0. 8=

46X20= 2.6X0. 3= 7.51 + 1.49= 1.08-0.8=

620T83 0.06X0. 9二 30X33 二 41X20^

92-r4= 8X3.4= 1-0.3= 1204-2=

1.1+12= 32X0. 7= 2-0.01 = 90-r 5=

4. 8-1.9= 25X0.01= 0. 36+0. 64= 2. 3+0.5=

04-13= 4.1X0.6= 30X18= 19X40=

800X5= 0.04X2= 0-r5= 4.3+0.8=

333+3= 0.74X0.8= 9.6-15= 0. 8-0. 08=

200X60= 3.5X5= 0.61-0.3= 125X8=

7704-7= 4.7X0. 9= 6-0.5= 650-r 5=

0. 837-0. 837 = 3.46X11=