Quality examination paper and answer of last semester of mathematics in grade three.

Quality inspection of the first semester of mathematics in grade three

Let me fill in (each space 1, ***2 1).

1. The time unit of the study is () (). When measuring for a short time, the unit with a small fraction () is often used.

2, 5 tons = () kg 6 decimeters = () cm

180 minutes = () 5 minutes = () seconds.

1:40 = () 80mm = () cm

1075 kg = () tons () kg

3. Fill in the appropriate units in ().

Dad works 8 minutes every day.

② The time for Li Jing to run 50 meters is 12 ().

③ It takes 4 () to take a deep breath.

④ The whole marathon is about 42 ().

⑤ This blackboard is 20 () long.

4. The PE teacher conducted a 50-meter running test for the first group of students, and the results were as follows: Xiaohong 9 seconds, Xiaoming 8 seconds, Xiaoli 1 1 second, Xiaojun 10 second. () runs the fastest and () runs the slowest.

Xiao Qiang left home for the library at 8: 45 on Sunday. It took him 20 minutes on the way. Xiao Qiang arrived at the library at (). After he stayed in the library for 40 minutes, he went back the same way and got home at ().

Second, sentence: fight? , wrong number? . (10)

1. Dongdong used 140 points in the 100-meter race. The train leaves Nanjing at 1: 05 pm and arrives in Shanghai at 3: 50 pm that day. The train took 2 hours and 45 minutes. ( )

A basketball weighs 250kg. ( )

4. Because of 400>4, 400 meters is more than 4 kilometers. () 5, 40 mm is as long as 4 decimeters. ( )

Third, fill in the serial number of the correct answer in (). (10)

1 and 1 ton of cotton is more than 1 ton of stone ().

A, light B, heavy C, equal weight.

2. Xiaoming's height is 156 ().

A centimeter b decimeter c meter

3. 1 min, 20 characters, how long does it take Xiaoli to write 4 characters? The column type is ().

a、 1？ 4 B、4？ 1°C、20？ four

4. Comparison between1m and10cm ().

A, 1 m is long b, 10 cm is long c, and the length is the same.

5. A movie will be released soon ().

A, 90 seconds b, 90 minutes c, 9 hours

Fourth, you work hard to calculate: (28 points)

1, a number written directly. (12)

76+45= 43- 18= 64+29= 80 1-346=

135+62= 256+ 144= 70+34= 90-24=

500- 150= 405- 126= 789+328= 486- 165=

2, vertical calculation and checking calculation. (16)

392- 178= 534+228=

486+2 17= 700-2 18=

5. Do it deftly: Draw line segments as required. (6 points)

① Draw a line segment with a length of 55 mm..

② Draw a line segment 3 mm shorter than 5 cm.

6. Try if you are wise: (25 points)

1, the library bought five identical books, each 8 mm thick, how many mm thick is a * * *, how many centimeters? (6 points)

2. There are 168 cocks in the chicken farm, and there are 382 cocks less than hens. How many hens are there? (6 points)

The train leaves at 9: 40. It takes Li Hua 35 minutes from home to the railway station. How long does it take Li Hua to leave home to catch the train? (6 points)

4. Yao Yao and Tingting jump rope. Tingting jumped 490 times in three times, and Yao Yao jumped 158 times in the first two times. How many times can she jump like Tingting for the third time? (7 points)

Answers to the Mid-term Mathematics Examination in Grade Three.

1. 1, hours, minutes, seconds.

2、5000 60 3 300 100 8 1 75

3. Hours, seconds, kilometers, decimeters

4. Xiao Hong and Xiao Li

5、9:05 9:45

Second, 1,? 2、? 3、? 4、? 5、?

Three. CACAB

Four. 1, 12 1 25 93 455

197 400 104 66

350 279 1 1 17 32 1

2、2 14 762