First of all, carefully examine the questions and fill in the blanks carefully.
1. There are 320 sixth-grade last semester graduates in Dagang Primary School, marked as -320, and 340 new semester students, marked as ().
2. Xiaohong goes south 100 meters, which is-100 meters, so +200 meters is her ().
The product of 3.3.28× 1.43 has a decimal (); The highest quotient of 1.5÷0. 12 is ().
4. fill in ">", "
5.7÷0.93○5.74 1.43×0. 1○ 14.3÷ 100 0.87×3.35○3.35
6. Fill in the appropriate numbers in the brackets.
84÷0.2 1﹦( )÷2 1 7.82÷46﹦( )÷4.6
7. 1.04 square kilometers = () hectares 300 square meters = () hectares.
350 kg = () tons 3.9 square meters = () square decimeter.
8. Point A is the midpoint of one side of the rectangle. If the area of a rectangle is 40 square centimeters, the area of a trapezoid is () square centimeters and the area of a triangle is () square centimeters.
9. Rewrite 624.385 million people into "10,000 people" () and "100 million people" and keep the integer () 100 million people.
Second, careful scrutiny and accurate judgment. (Tick √ in brackets for correctness, and tick ×) for error)
1, 0 is neither positive nor negative. ( )
2. The thermometer drops from-1℃ to 0℃ after 1℃. ( )
The area of parallelogram is twice that of triangle. ( )
4. My mother recommended three newspapers to Beibei: Juvenile Intelligence Development Newspaper, Colorful Chinese for Primary School and Mathematics for Primary School Students. If Beibei subscribes to at least one subscription and at most three subscriptions, then Beibei Yi has seven different subscription methods. ( )
Third, multiple choice questions. (Put the serial number of the correct answer in brackets)
1.290290 ... Keep three decimal places is ().
( 1) 1.29 (2) 1.290 (3) 1.3
2. The maximum load of a car is 3.5 tons, and the goods to be transported are 1 1 ton, at least ().
(1)3 times (2)4 times (3)5 times
3, a pile of logs, piled into a trapezoid, lower layer 12, upper layer 7, every two adjacent layers, this pile of logs * * * has ().
57 and 50
C.76 D.45
Fourth, be careful and don't be careless.
1, a number written directly.
6.4÷0.2= 0.9-0.89= 1.07+8.3= 3.6÷ 10= 0.85-0.05=
100× 1.5= 8. 1+9= 4.5×0.2= 0.7+0.23= 0.54÷0.6=
2. Use vertical calculation. (marked △ to be inspected)
17.8+3.29 8-5.86 5.3×0.26 △ 8.93÷ 1.9
3. The following problems, which can be simplified, should be calculated by simple methods.
2.9+0.46+7. 1+0.54 27.6- 1 1.3 1-5.69 3.6×99
32×2.5× 12.5 7.28÷0.4 ÷25 4.97×[2.46÷(5.58-5.28)]
Verb (abbreviation of verb) actual operation
The following square paper is 1cm2. Draw a parallelogram, a triangle and a trapezoid with equal area in the following square.
The area of rectangle is 48 square centimeters. What is the length and width of this rectangle? Try this list and see how much will happen.
Length (cm)
Width (cm)
3. A peach blossom garden similar to a parallelogram is divided into two by a rectangular gravel road (as shown in the picture). It is known that the base of a parallelogram is 36 meters, the height is 24 meters, and the path width is 1 meter. If each peach tree covers an average area of 5 square meters, how many peach trees are there in this peach garden?
Tomatoes and peppers are planted in Zhang's vegetable field, and a row of peppers is interplanted between every two rows of tomatoes. Each row of tomatoes is 0.6 meters wide and each row of peppers is 0.4 meters wide. If there are 9 rows of tomatoes in the vegetable field, how many meters is the width of this vegetable field?
5. There are 180 red, white and black beads of the same size, which are arranged in the order of 2 red, 4 white and 3 black.
What color is the (1) 123 bead? (2) 123 How many pearls are white?
6.0 yuan, 2 yuan and 5 yuan have RMB 65,438+. Choose one or two RMB. How many different kinds of money can a * * * make up?