1, when calculating 258-( 15+7)×3, calculate () first, then (), and finally ().

2. Addition, subtraction, multiplication and division are collectively called ().

3. Multiply a number by 0, and the result is (). Divide 0 by a nonzero number and the result is ().

4. The lowest bit of the integer part is () bit, and the highest bit of the decimal part is () bit, and the ratio between them is ().

5. The number consisting of four ones, eight tenths and six thousandths is (), which is pronounced as ().

6. Move the decimal point 0. 126 to the right by two digits (), and move the decimal point () to the left by three digits is 0.0068.

7.4 yuan: 50.8 = () Yuan: 2.03 Yuan = () Yuan: () Yuan: () Jiao: ()

8. Arrange the following figures in descending order. (2 points)

4.023 4.3 4.032 0.432 4.32 4.302

9. Make144+118 = 262 262 ÷ 2 =1311× 9 =/kloc-0.

Second, judge. Mark "√" in () for the right and "×" in () for the wrong. (5 points)

1, 8 0.0 1 is greater than 7 0. 1. ( )

2. Decimal is not necessarily less than 1. ( )

3、25×(8+4)=25×8+4。 ( )

Rewriting 0.7 into three decimal places is 0.007. ( )

5. The maximum counting unit of fractional part is 0. 1. ( )

Third, multiple choice questions. Choose the serial number of the correct answer and fill in (). (5 points)

1, 0 cannot be () [① Divider ② Divider ③ Minus ④ Minus]

2. Move the decimal point 0.05 one place to the left and three places to the right to get (). [ ① 5 ② 50 ③ 500 ]

3. The number obtained after 0.360 decimal point is () times of the original number.

[ ① 10 ② 100 ③ 1000 ④ 10000 ]

4. The sum of subtraction is 100, and the minuend is (). [ ① 200 ② 100 ③ 50 ]

5. Simplifying 30.0820 is (). [ ① 30 ② 30.82 ③30.082]

Fourth, off-type calculation. (3 points for each question, *** 12 points. )

280+76×9-589 189÷9+ 16×8

( 168- 18 )×(32+ 18) 7×(58+27)÷ 17

5. Use a simple method to calculate. (2 points for each question, *** 16 points. )

569+68+ 132+3 1 138×25×4 2300- 165-35

125×(8+4) 3200÷25÷4 23×32+68×23

25×204 56×32-46×32

Mark the position of each place on the plan according to the following description. (For each question, * * * points. )

1. The bus stop is in the east of the school1200m.

People's Square is 600 meters southwest of the school.

3. The post office is 1 km west of the north of the school.

The supermarket is 800 meters east of the south of the school.

north

Xi xiaoxuedong

200 meters

south

Seven, application questions. (5 points for each question, ***30 points)

/kloc-There are 5 classes in Grade 0 and Grade 4, and 25 seedlings are planted in each class on average. Buy Miao Yao 1250 yuan. How much is each seedling?

2, each bottle of 2 yuan. How much does it cost to buy these mineral waters?

The grain store delivered 50 bags of rice and 50 bags of flour, 90 kilograms of rice and 25 kilograms of flour each. How many kilograms more rice is brought in than flour?

4. Fu produces 64 parts per hour, the apprentice produces 48 parts per hour and the master produces parts for 3 hours. How many hours does the apprentice need to finish?

5. Uncle Li has a vegetable field (as shown on the right). How many square meters is this vegetable field?

The engineering team built a 5600-meter-long highway. 260 meters has been repaired, and it will be completed in the remaining 30 days. How many meters will the rest be repaired on average every day?