The first volume of mathematics in the sixth grade of primary school is excellent.

Unit 5 answers to the first volume of mathematics in the sixth grade of primary school

Composite bar chart in the class 1 (1)

I. 1. The second, fourth, fifth and third grades.

2.5 5

3. Five, three, five, four

4. 10 4

Two. 1.20112009

2.(600-500)÷500﹦20%

(500-460)÷500﹦8%

The number of domestic and foreign tourists received by this city is increasing year by year. (The answer is not unique)

The second kind of complex bar chart (2)

I. 1.2850 2250

2.35. 1 150

3.70.4

4.44. 1 78.9

Two. 1.40+35-75 (person)

30+40-70 (person)

(75-70)÷70﹦7. 1%

Three. 1 ....

2.(5 1-36)÷36﹌4 1.7%

three ....

Statistical table of the third kind of composite broken line (1)

I. 1.2 days

2. Day 4, Day 8

3.20 mm 7 mm

Second, Store A should be closed. Since 2007, the turnover of store A has been decreasing year by year, while that of store B has been increasing steadily.

The fourth kind of composite bar chart (1)

I. 1.5 20 10

2.20 1 1

3. 155 38.75

4.32.5

5. 166.7 60

Two. 1.A4 No.

2. Composite broken line statistical chart

3. Don't say it

Three. 1 ......

2. The sales volume of beverage B is higher, so enter beverage A, because the sales volume of beverage A is on the rise, while the sales volume of beverage B is on the decline.

Lesson 5 Exercise 4

First, 1. A plane; 35 seconds b side; 40 seconds b plane

2.a； 20 meters b; 16m 15s

3. Level and smooth flight

Second, 1. Music writing

2. 1 1:6

3.40

Third, draw ellipsis and find that plants can't grow without sunlight (the answer is not unique, but reasonable)

4. 1. Metasequoia glyptostroboides * * 7300, Ginkgo biloba ***7 100.

2. The number of Metasequoia glyptostroboides has been increasing, and the number of Ginkgo biloba decreased in 2009.

Verb (abbreviation of verb) 1. Drawing ellipsis

2.83.7%