1, the rectangle is one centimeter long, 1/
2。 The circumference of this rectangle is ().
2. The ratio of A number to B number is 6: 7, A number is () of B number, and B number is () of A number.
3/4 of the number of boys
5 is equivalent to the number of girls, and () is regarded as the unit "1".
4. Divide 2 tons of coal into 5 parts on average, each part is 2 tons of coal (), and each part is () tons.
5、 ( ) 8= 10:( )=( )÷40=0.375=( )%。
6. At 3/
4, 75.4%, 0.8 and 3/
5 Among these four numbers, one is () and the smallest is ().
7. The sum of the sides of a cuboid is 480 cm, and the sum of the lengths of three sides intersecting at a vertex is () cm.
8, cubic meters =3560 liters = () cubic meters () cubic decimeter.
9. Make syrup with10g sugar and10g water. The ratio of sugar to water is (), and the ratio of sugar to syrup is ().
10, Aunt Zhang keeps some chickens and rabbits, with 20 heads and 62 feet, including chickens () and rabbits ().
Second, multiple choice questions.
1. If the perimeters of the following figures are equal, the area is ().
A. square B. rectangle C. circle
2. There is a cup of sugar water with a sugar content of 40%. After drinking half, the sugar content is ().
A.40% B.20% C.80%
3, 37 cm is 1 m ().
A.3
7 million pounds
4. To make a larger cube with a volume of 2 cubic centimeters, at least () small cubes are needed.
A.4 B.8 C. 16
5. There is a 2-meter rope. After cutting 1.5, connect with 1.5 meters. Now it's more than before ().
A. long B. short C. same length
6. a÷b= 1.2, then A: B ().
A.5:6 B.6:5 C. 1:2
Third, judge the question.
The reciprocal of 1 and a is 1/
Answer. ()
2. unit of volume is bigger than unit of volume. ( )
3. A bag of rice weighs 35% kg. ( )
4. Seed germination test showed that 102 seeds germinated, and the germination rate was 100% ().
5. When a nonzero natural number is divided by 34, the quotient must be greater than the dividend. ( )
6. Compared with the former item, the proportion is increased by three times, while the latter item is reduced by three times and the proportion is increased by nine times. ( )
Fourth, column calculation.
What is the 50% quotient of 2.74 divided by 0.24?