1. The first volume of sixth grade mathematics Unit 1 examination questions
1. Judgment: 1, a is greater than 1, and its reciprocal must be less than 1 ........................................................................ ().
2,7/8 and 8/7 are reciprocal .............................. ().
3. A number multiplied by a true fraction, the product is less than this number ...................... ().
4. When a number is multiplied by its reciprocal, the product must be 1 ............................ ().
5. If two wires with a length of 2m are cut off by 3/4 meters from each section and 3/4 meters from the second section, the remaining lengths of the two wires will be equal. ............................................................................................................................
Second, the column calculation:
1, a number is 23, b number is 123, and a fraction of b number is a number? How many times is the number b a?
2. What is the sum of the reciprocal of1/3 and 4?
What's the difference between 1/6 of 3 and 1/8 of 36 and 24?
2. The first volume of the sixth grade mathematics Unit 1 test questions
1. Fill in the blanks 1. One batch has1000t, the first batch is 20%, the second batch is 25%, and the rest accounts for ()% of this batch.
2. A total of 97 plants were planted, all of which survived, and the survival rate was ().
3.60 1 class has 48 students a day, and 2 students are absent due to illness, so the attendance rate of this day is ()%.
4. If A is 1 13 times of B, then B is () of A. ..
5. For a product from 480 yuan, the preferential activity of the shopping mall is 300 yuan Lijian 120 yuan. Actually, this product is on sale ().
Second, the judgment question
50% of 1. 1 km is 50% km. ( )
2. A hairtail weighs 0.3 kg, which can be written as 3 10 kg or 30% kg. ( )
The price of a commodity is reduced by 20% first and then increased by 25%. The current price is equal to the original price. ( )
The number of students in a primary school is the same for boys and girls, accounting for 60% each. ( )
3. The first volume of the sixth grade mathematics Unit 1 test questions
First, judge. 1. The circumference of a circle is 2π times its radius. ( )
2. The diameter of a circle is the symmetry axis of this circle. ( )
The circumference of a semicircle is half that of a circle with the same radius. ( )
4. The line segment passing through the center of the circle is called the diameter. ( )
A circle with a radius of 2 cm has the same circumference and area. ( )
Second, choose.
1. Draw a circle in a rectangle 6 cm long and 4 cm wide. The area of this circle is _ _ _ _ _ _ _ square centimeters. ( )
( 1)28.26 (2) 19.625 (3) 12.56
2. The radius of a circle is 1 decimeter, and the circumference of its semi-circle is _ _ _ _ _ cm. ( )
( 1)3. 14 (2)4. 14 (3)5. 14
4. The first volume of the sixth grade mathematics Unit 1 test questions
Fill in the blanks. 1. The quotient of the circumference and diameter of a circle is called (), which is represented by the letter ().
2. In an equal circle, all diameters are (), all radii are (), and diameters are radii ().
3. When the diameter of a circle is tripled, its circumference is multiplied by () times and its area is multiplied by () times.
4. The rectangle has a () axis of symmetry. A square has () axis of symmetry, an isosceles triangle has () axis of symmetry, and a circle has () axis of symmetry.
5. Draw a circle with a side length of 4 decimeters in the square. This circle has a diameter of () decimeter, a radius of () decimeter, a circumference of () decimeter and an area of () square decimeter.
Second, the application problem
(1) A motorcade has to transport 80 tons of goods, and it transported 4/5 of the total on the first day. How many tons are left?
(2) There are 40 volleyballs in the gymnasium, which is 5/8 of the number of basketball. How many basketballs are there in the gym?
(3) The school bought a 60-meter-long rope, which used 2/3 of the whole length for the first time and 2/3 meters for the second time. How many meters are left?
(4) There are 150 peach trees in the orchard, the number of which is 3/5 of that of pear trees and 4/5 of that of apple trees. How many apple trees are there?
5. The first volume of the sixth grade mathematics Unit 1 test questions
1. True or False (1) When a number is divided by a fraction, the quotient must be greater than this number. ( )
(2) The meaning of decimal multiplication and division is exactly the same as that of integer multiplication and division. ( )
(3) The number A divided by the number B is equal to the reciprocal of the number B.
(4) If a × 4/5 = b × 2/3, then A is less than B. ()
(5) The reciprocal of 1 is1,and the reciprocal of 0 is 0. ( )
Second, multiple choice questions
(1) 4/5 of a number, what is its 2/3? ( )
4/5 of a number is equal to 2/3. What's this number? ( )
Two thirds of a number is five quarters. What's this number? ( )
(4) Multiply a number by 4/5 and the product is 2/3. What's this number? ( )
(5) When a number is divided by 2/3, the quotient is 4/5. What's this number? ( )
a、4/5 \2/3 B、2/3 \4/5 C、4/5×2/3 D、2/3×4/5