Mathematics 6th Grade Test Combo Answers

Xiao Ming drew a triangle and copied ABC, and the amount was attacked.

a=30°, b=60°, then the degree of c is ( )a 90°

b．110°

c．120°

d．130°

Answer] A In a Cartesian coordinate system, point A is on the x-axis, located to the right of the origin, 2 units of length from the origin, then the coordinates of point A are ( ).

a．（-2，0）

b．（2，0）

c．（0，2）

d．（0，-2）

Answer] B: Only one of the following regular polygons is used, and the one that cannot be inlaid into a flat pattern is ( ) A regular triangle.

b Square.

c Regular pentagon.

d regular hexagon.

Answer] c

First empty: 560 14% = kg).

Second empty: kilograms).

Put two exactly the same cuboids into a new cuboid, due to the different methods of spelling, the surface area is reduced by 18 square decimeters, 14 square decimeters, and 26 square decimeters respectively than the original, and the surface area of each cuboid is how many square decimeters 1) 18 2 9 (square decimeters).

14 2 7 (square decimeter).

26 2 13 (square decimeter).

58 (square decimeters).

2) 18 14 26 58 (square decimeter) 1A rectangular container is 6 dm long and 4 dm wide, and after 76 litres of water are poured, a cube of iron with a 2 cm edge is placed in it, and the water surface is separated from the mouth of the container. Finding the volume of a container?

2.A cylindrical piece of timber, if cut into two sections, increases the surface area by 628 square centimeters; If cut into two semi-cylinders along the diameter, the surface area will increase by 800 square centimeters. What is the surface area of the original cylinder?

1. A rectangular container is 6dm long and 4dm wide, after pouring 76 liters of water, a cube of iron with an edge length of 2cm is put in, and the water surface is separated from the mouth of the container. Finding the volume of a container?

The volume of a cube of iron with an edge length of 2 cm: 2 2 2 8 (cubic centimeters) liters).

High free volume: 6-4 liters).

Volume of the container: 76 liters).

2. A section of cylindrical wood, if cut into two sections, the surface area increases by 628 square centimeters; If cut into two semi-cylinders along the diameter, the surface area will increase by 800 square centimeters. What is the surface area of the original cylinder?

Cut into two sections, the surface area increases by 628 square centimeters (that is, the sum of the area of the upper and lower bottom of the cylinder), and the bottom area is:

628 2 314 (square centimeters).

Brother's speed is not stupid = 100 * (3 4) = 75

Speed difference between the two = 100-75 = 25

After 10 minutes, the distance between the withering phases is 25*10=250 meters.

Earth; And the time to look at a few empty connections to Microsoft.

2. Add the operation symbols and parentheses to the following numbers to make the equation true.

3. Fill in the numbers according to the rules.

4. Calculation: (1).

5. Among the four digits composed of , arranged from small to large, the 18th number is (3421

6. There is a fraction, the numerator plus 1 can be reduced to 1 4, and the denominator minus the comma 1 can be reduced to 1 5. This score is (3 to 16

7. The father is 30 years older than the son, and the father's age next year is 3 times that of the son, so this year's son is (14

Year. 8. Among the 48 students in a class, each student can at least one kind of shuttlecock or skipping rope, of which 28 can kick shuttlecock, 12 can do both, and those who can skip rope are (

32) people. Kilograms of pears and 4 kilograms of apples cost 18 yuan, and 4 kilograms of pears and 5 kilograms of apples cost 23 yuan. 1 kg of pears (2

Yuan. 10. There are a total of 10 questions in the intellectual competition, 10 points are awarded for a correct answer, 4 points are deducted for a wrong answer, Xiaoli completed all the questions, and only got 32 points to roll, she answered correctly (

Title. There is a problem with the problem, and the solution is not an integer.

11. An old man walked on the highway at the same speed, and it took 22 minutes to walk from the first telephone pole to the 12th

19) Telephone poles.

12. Measure the height of the bridge with a rope on the bridge, fold the rope in half and hang it to the water surface, and there are 8 meters left; Hang the rope three times to the surface of the water, there are still 2 meters left, and the bridge height (6 meters.

13. A fertilizer plant originally planned to complete a task in 14 days, but due to the production of more tons of fertilizer per day, the task was completed in 9 days. It was planned to produce fertilizer (

Ton. 14. There are two bags of rice in A and B, and the weight of bag B is 10 kilograms, and if 1 3 is poured out of bag A and given to bag B, bag A is 2 kg more than bag B. The armor bag originally contained rice (36

Kilogram. 15. The three villages of A, B and C jointly build a road, and the distance ratio of the three villages is 8 7 5Now the three villages are required to dispatch laborers according to the distance to be repaired.

Due to special reasons, Village C did not send laborers, but it was necessary to pay 1,350 yuan to Village A for selling a sedan chair and Village B. In this way, village A sent 60 people, and village B sent 40 people. A village should be divided (1080

Yuan, Village B should be divided (270 yuan.

Answer: If A goes up the mountain at a downhill speed, when B reaches the top of the mountain, the distance A has traveled should be 1* times that of a one-way trip, that is, the speed of A going down the mountain is twice the speed of B's uphill.

When the two met, they walked for 1 hour, and then A had to walk a section of the downhill road, and it took 1 hour for B to go up the mountain, and it took 1 hail to go down the mountain for 2 hours.

A walked a total of 1+1 2=hours) report.