First, the oral calculation questions
Fractional addition: 0.3+1.5 = 2.5+9.8 = 7.6+1.3 = 4.4+5.7 = 2.3+7.7 =
5.7+3. 1= 7.69+2.3 1= 9. 16+2.64= 5.68+ 12.22= 16.8+ 16.5=
Decimal subtraction: 6.8-3.8 = 4.26-3.71= 0.88-2.12 = 5.34-69.21= 68.4-61.5 =
9.58-3.7= 18.94-5.66= 15.69-9.78= 1 15-68.59= 48.2 1- 18.95=
Decimal multiplication: 5.69× 2.56 = 3.68× 9.86 = 5.87×12.6 = 7.89× 22.56 = 6.87× 9.68 =
89.4×25.5= 14.6×22.69= 78.56×36.94 25.36×36.58= 25.69×58.9=
Fractional division:1.4 ÷ 0.5 =1.55 ÷ 0.5 = 3.15 ÷ 0.7 =
1.86÷0.2= 1.04÷0.8= 0.38÷0. 1=
1.36÷0.2= 1. 16÷0.4= 0. 12÷0.6= 0.27÷0.9=
Second, the longitudinal calculation
Addition: 25.9+7.82 369.2+24.68 32.56+2.13 98.23+1928.35 226.59+582.38+02.
Subtraction: 928.22-325.98 726.13-36.6641.02-268.261000-236.5/kloc-0.
Multiplication:135× 5108× 68× 3127× 210/38× 9.
Division: 336 ÷ 21858 ÷ 39 918 ÷ 27 888 ÷ 37 645 ÷ 32.
Three, simple calculation and off-type calculation problems:
146+ 155+254+45 1762-73- 127 10 1×28
Fourth, the application problems:
1. There are 4 classes in the third grade of the experimental primary school, with 40 students in each class. The total number of students in grade four is more than that in grade three 19. How many students are there in the third and fourth grades?
There are 72 basketballs in the school, table tennis is 28 more than basketball, and football is 32 less than the sum of basketball and table tennis. How many footballs are there?
2012 65438+1October 29th
First, the oral calculation questions
Decimal addition: 0.396+23.69 = 2.36+2.54 = 8.64+21.44 = 2.87+3.45 = 2.25+7.88 = 5.79+3.15 = 7.58+2.
15.88+ 12.58= 36.8+3 1.54=
Decimal subtraction: 26.12-15.8 = 34.26-3.98 = 320.12-2.98 = 25.4-12.56 = 68.4-6/kloc.
1 10-68.36= 48.0 1- 18.56=
Decimal multiplication: 5.23× 2.56 = 3.25× 9.86 = 5.58×12.6 = 7.12× 22.56 = 6.219.68 =
89.69×25.24= 4.6×2.69= 8.56×36.9= 5.36×6.58= 28.9× 12.59=
Fractional division:1.4 ÷ 0.5 =1.55 ÷ 0.5 = 3.15 ÷ 0.7 =1.86 ÷ 0.2 =
1.04÷0.8= 0.38÷0. 1= 1.36÷0.2= 1. 16÷0.4=
0. 12÷0.6= 0.27÷0.9=
Second, the longitudinal calculation
Addition: 268.15+23.84 23.5+783.45 75.6+259.198.1+58.44 65.48+98.1.
Subtraction: 95.45-25.87101.2-59.48 300.54-58.19 78.14-25.6 500.02-57./kloc-0
Multiplication: 208× 24 36×137 406× 23 460× 23 305× 56.
Branch: 689/34618/88 372/45 294/29 328/42
Three, simple calculation and off-type calculation problems:
672-672÷ 12×7 987÷(345-298)×65 2 10×[520÷(240-227)]
Fourth, the application problems:
Processing a batch of parts, it is planned to process 24 parts a day, and it will be completed in 25 days, but it will actually be completed in 20 days. How many parts are actually processed every day?
In Uncle Li's orchard, * * * planted four rows of fruit trees, each row 15. I picked 180 baskets. How many baskets did an apple tree pick?
2012 65438+1October 30th
First, the oral calculation questions
Decimal addition: 4.13+3.2 = 4.7+3.7 = 6.94+3.12 = 5.6+6.4 = 0.19+0.01=
32.2+2. 1= 6.4+8.2= 28.0 1+2.09= 3.4+6.8= 9.6+2.4=
Decimal subtraction: 245.6-48.94 = 200-25.15 = 801.2-75.14 = 225.15-39.48 =
7 1. 12-58.36= 87.2- 12. 15= 205. 13-64.5 1= 107.06-95.86=
15.06-5.9= 58.2 1-38.98
Decimal multiplication:125× 32 = 24×125 =125× 56 =125× 72 =125×16 =
48× 125= 125 ×64= 25×36= 25×32= 25× 16=
Fractional division: 8100 ÷ 300 = 7600 ÷ 200 = 7600 ÷ 400 = 300 ÷ 25 = 4000 ÷125 =
240÷5= 600÷25= 3200÷50=
Second, the longitudinal calculation
Addition: 25.45+267.28 58.14+569.25 59.12+69.14 98.54+89.14 28.13+.
Subtraction: 586.46-278.98 605.22-589.5801.32-485.65 589.5-254.87 365.54-578.88
Multiplication: 208× 24.8 36×137.6 406× 23.5 460× 23.2 305.3× 56.4.
Division: 336 ÷ 21858 ÷ 39 918 ÷ 27 888 ÷ 37 645 ÷ 32.
Three, simple calculation and off-type calculation problems:
38×99+38 75× 299+75 102×99+ 102
Fourth, the application problems:
Sprinklers travel 50 meters per minute with a spraying width of 8 meters. How much water can the sprinkler sprinkle for 6 minutes?
A plane flew 1700 km in two hours. According to this calculation, how many kilometers did you fly in six hours?
2012 65438+1October 27th
First, the oral calculation questions
Fractional addition: 5.69+2.36 8.96+3.65 5.69+4.58 6.87+2.135.87+6.45.
2.35+4.57 5.69+2. 12 2.6+5.69 3.0 1+2.65 2.9+2.98
Decimal subtraction: 56.9-23.1587.21-59.65 8.1-4.62 28.59-5.8712.36-8.47.
1 18.6-25. 1 15.2 1-6.89 27.23-8.78 34.56-28.98 24.56-20.59
Decimal multiplication: 2.5× 3.65.6× 2.48.7× 2.1.9.1.2× 3.65.87× 6.74.
6.8×5.4 3.6×8.7 2.4×6.8 8.7×2. 1 3.5×6.4
Fractional division: 0.35 ÷ 0.01.3.92 ÷ 0.8 4.32 ÷ 0.9 0.24 ÷ 0.83.1.5 ÷ 0.7.
0. 14÷0.5 15.5÷0.5 3. 15÷0.7 1.86÷0.02 1.04÷0.08
Second, the longitudinal calculation
Addition: 68.59+59.12 68.98+79.8 5.89+14.68 89.74+58.89 28.96+54.12.
Subtraction: 587.01-58.451-78.21-98.54 201-58.48 58.62-58.28 87.53-57.24.
Multiplication: 58.12× 25.658.5× 34.8 24.56× 67.15 68.9× 32.12 97.28× 58.4.
Division: 432 ÷ 46 966 ÷ 23 73179 980 ÷ 28 828 ÷ 36
Three, simple calculation and off-type calculation problems:
2 10+405÷9× 12 4020÷20- 18× 1 1 2.5×0.23×4
Fourth, the application problems:
1. A car travels at an average speed of 75 kilometers per hour. At this speed, it takes 2.7 hours for the car to travel from A to B.. How many kilometers is it between A and B? (Numbers are reserved as integers)
2. The library has 134 fairy tale books, and the number of composition books is 2.5 times that of fairy tale books. How many fairy tale books and composition books are there in the library?
201265438+1October 26th
First, the oral calculation questions
Decimal addition: 5.66+3.78 5.89+6.78 6.23+6.54 8.97+5.87 89.87+5.8.
6.89+9.87 83.5+8.78 6.98+75.5 6.87+5. 12 6.78+56. 12
Decimal subtraction:12.21-5.8716.87-25.9810.5-8.781.56-9.23 8.7-3.
8.7-5.45 1 1.08-5.49 10.56-6.8 23.5- 18.2 37.5-26.9
Decimal multiplication: 2.5× 63.6× 5.8× 2.53.6× 2.13.8× 7.8.
8.5×3.6 5.8×4.7 3.9×2.7 1.9×6.8 4.7×6.7
Fractional division: 0.72 ÷ 0.03 4.8 ÷ 0.212.12 ÷ 0.3 0.24 ÷ 0.08 0.98 ÷ 0.7.
3 1.5÷0.07 0.9÷0.03 0.72÷0.09 0. 18÷0.3 0.36÷0.06
Second, the longitudinal calculation
Addition: 234.58+59.78 36.54+269.55 5.78+584.45438+0 6.89+215.55 365.18+98.25.
Subtraction: 652.1+584.56 692.1-245.87 365.1-250.87 568.18-397.59 98.54-25./kloc-
Multiplication: 25.6× 36.56 58.78× 25.43.66× 5.87 5.12× 3.45 6.7× 8.79.
Division:180 ÷ 30 = 720 ÷ 30 = 360 ÷ 30 = 920 ÷ 40 = 780 ÷ 60 = 960 ÷ 40 =
Three, simple calculation and off-type calculation problems:
1.25×4.8 3.7× 102 7.8×99
Fourth, the application problems:
1 ha pine forest secretes 30 kilograms of bactericide every day. How many kilograms of bactericide can 24.5 hectares pine forest secrete 3 1 day?
2. To build a canal, it was originally planned to build 0.24 kilometers per day, but actually it was built 0.06 kilometers more than originally planned. 12 days later, it is still 0.4 km short. How long is this canal?
2012 65438+1October 25th
First, the oral calculation questions
Fractional addition: 2.35+6.98 3.45+1.69 3.65+5.78 5.89+2.126.89+2.45.
6.45+5. 12 5.45+6.82 5.8+3.48 2. 12+6.48 6. 14+6.45
Decimal subtraction:12.52-5.193.31-2.5618.32-9.54 87.21-6.21.
56.85-6.87 6.45-5.89 9. 12-9.98 15.24-8.98 28.23-5.9
Decimal multiplication: 2.3× 3.53.6× 5.45.8× 9.56.9× 4.56.7× 9.1.
6.8× 1.3 6.8×9.5 5.9×4.2 3.8×5.7 2.6×8
Fractional division:1.8 ÷ 0.3 7.2 ÷ 0.03 3.6 ÷ 0.09 0.36 ÷ 0.04 0.36 ÷ 0.03.
5.2÷0.4 7.8÷0.2 8.8÷0.04 5.6÷0.09 4.8÷0.07
Second, the longitudinal calculation
Addition:12.5+256.4 28.45+69.23 36.56+98.45 87.52+69.169.8+59.12.
Subtraction:116.5-26.45 201.5-25.95 521.36-56.4719.45-548.1228.
Multiplication: 25.6× 4.65 258.12× 5.845.12× 57.64 68.12× 59.46 67.34× 97.12.
Division: 432 ÷ 24 = 625 ÷ 23 = 837 ÷ 43 = 850 ÷17 = 780 ÷ 26 = 544 ÷17 =
Three, simple calculation and off-type calculation problems:
4.6×7.3+7.3×5.4 2.9×3.5+3.5×6. 1 3.5× 102
Fourth, the application problems:
1. Bought 1.5 kg of bananas and 1.8 kg of apples. 1kg apples are more expensive than 4.6 yuan, and 1kg bananas are more expensive than apples. How much does it cost to buy a * *?
2. It is accurate and rapid to measure the distance with laser. It takes about 2.56 seconds to send a laser signal from the earth to the moon and receive the signal reflected from the moon. As we all know, light travels 300,000 kilometers per second. What is the distance between the moon and the earth?
2012 65438+1October 24th
First, the oral calculation questions
Decimal addition: 8.12+6.45 5.91+6.45 5.47+6.78 6.45+3.17 3.65+8.47.
12.4+58. 14 8. 19+3.64 8.64+5.97 8.3 1+5.97 2.9+6.94
Decimal subtraction: 28.12-13.4538.31-9.7897.12-58.3178.14-26.48.
44. 15-24.98 18.3 1-9.29 18.3 1-5.82 1 1. 16-9. 15 14.97-8.3 1
Decimal multiplication: 2.3× 4.52.6× 4.94.8× 2.1.8.1× 6.95.9× 0.8.
8. 1×0. 13 0. 12×2. 1 4.5×3.5 0.8×7. 1 0.4×5.7
Fractional division:1.6 ÷ 0.80.14 ÷ 0.70.18 ÷ 0.9 4.9 ÷ 0.07 0.42 ÷ 0.6.
7.2÷0.09 0.56÷0.7 8. 1÷0.09 1.5÷0.5 0.32÷0.8
Second, the longitudinal calculation
Addition: 25.6+482.215.13+6.49 8.89+12.54 87.23+983.5438+0 52.64+92.54.
Subtraction: 301.23-264.515.23-9.59 426.12-253.100.01-58.13.
Multiplication: 0.25× 2.6815.45× 68.12 58.21× 48.3178.23× 28.97 5.9× 8.79.
Division: 520 ÷ 40 = 920 ÷ 23 = 864 ÷ 32 = 840 ÷ 24 = 704 ÷ 44 =
Three, simple calculation and off-type calculation problems:
4.63×4×0.5 0.25×8.4 3.7× 12.5+4.3× 12.5
Fourth, the application problems:
1.A and B leave relatively at the same time. A car travels 63.5 kilometers per hour, and B car travels 56.5 kilometers per hour. Four hours later, two cars met. How many kilometers is it between A and B?
2. The road team built 3.6 kilometers in the first three days and 1.85 kilometers every day in the last four days. How many kilometers did the highway team build this week?
20 12 February 1
First, the oral calculation questions
Decimal addition: 5.87+6.9 8.7+5.6 8.9+4.6 4.9+8.7 2.6+4.5
8. 15+6.5 2. 1+6.5 7.8+ 1.3 9.5+4.6 3.4+8.9
Decimal subtraction:15.2-2.641.8-5.63.6-1.57.9-5.818.9-6.8.
18.45-6.9 17.3 1-5.9 6.4-4.7 3.6-2.45 6.87-2.45
Decimal multiplication: 2.2× 0.84.5× 0.96.7× 0.50.8× 0.150.9× 4.5.
7.8×0.6 0.9×0. 15 1.8×0.7 0.78×0.2 3.5×0.9
Fractional division: 6.3 ÷ 0.7 7.4 ÷ 0.2 6.9 ÷ 0.31.5 ÷ 0.3 2.5 ÷ 0.05.
2.7÷0.09 6.4÷0.8 2.8÷0.7 1.2÷0.04 2.4÷0.06
Second, the longitudinal calculation
Addition:154.89+52.45 78.13+58.64 97.5+98.24 64.54+82.1595.12+78.1.
Subtraction:157.21-25.4810.5-58.9410.05438+0-54.0357.98-25.45102.
Multiplication: 2.5× 2.45.8× 6.759.12×1.58 0.13× 5.82.5×1.6.
Division: 480 ÷ 3.2 693 ÷ 0.03 255 ÷ 0.5 78.2 ÷ 0.02 96.3 ÷ 0.03.
Three, simple calculation and off-type calculation problems:
250×24 7.8× 105 15.6×5+ 15.6×4
Fourth, the application problems:
1. Typist Xiao Li types 45 words per minute. How many words can Xiao Li 1 hour type in 20 minutes?
2.5 Workers repair 900 meters of roads in 6 days. How many meters does each worker build roads every day on average? (Two step-by-step subtitle solutions. )