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Jiangsu elementary school mathematics sixth grade first volume evaluation manual 55 pages answer.
Jiangsu Education Edition (New) Standard Answers to the First Volume of Primary School Mathematics Evaluation Manual for Grade Six

Unit 1 (Solving problems with column equation 1)

The first question (omitted)

2.( 1) Pears arrive (4x-20) kg. (2) Dad's weight is (3X+ 15) kg.

3. Solution: He walks X kilometers every hour. 3X﹢3= 18 3X= 18-3 X=5

4. Solution: The library covers an area of X square meters. 2X-20=400 2X=400+20 X=2 10

5. solution: there are x pear trees. X-500 = 1000 x2 X-500 = 2000 X = 2500

☆6. Solution: Xiaohua is X years old. 3.2X-2.8X=6 0.4X=6 X= 15

Solving problems with column equations (2)

leave out

(1)3X=70+20 solution: 3x = 90x = 30 (2) 4x+15.5 = 23.54x = 23.5-15.5x = 2.

0.8 hectares =8000㎡ Solution: The height of the triangle is x meters. 200 X÷2 = 8000 200 X = 16000 X = 80

Solution: can stand x people. 16X = 20×24 16X = 480 X = 30

☆5. Solution: After expansion, X people can sit in each row on average. 36X = 36×30+432 36X = 15 12 X = 42

Column equation to solve the problem (3)

1.

2.( 1) Volleyball has (4X), volleyball has (4X+X), and basketball is less than volleyball (4X-X).

(2) There are (X+2.5X) pear trees and peach trees, and there are more pear trees than peach trees (2.5X-X).

3. Solution: There are X basketball and 3X football. 3X-X = 300 2X = 300 X = 150 3X = 150×3 = 450

4. Solution: The grain in warehouse B is XT, and the grain in warehouse A is 2.5xt.x+2.5x = 350 3.5x = 350x =100 2.5x =100× 2.5 = 250.

5. Solution: Warehouse B stores grain XT and Warehouse A stores grain 3XT. 3X-40 = X+40 3X-X = 40+40 2X = 80 3X = 40×3 = 120

☆6. Solution: warehouse A transports XT to warehouse B.2× (180-x0 =120+x360-2x =120+x240 = 3xx = 80.

Column equation to solve the problem (4)

1.

2 ellipsis

3-5 Omission.

6. Solution: X black rabbits and 2X+4 white rabbits. X+2X+4 = 49 3X = 45 X = 15 2X+4 = 15×2+4 = 34

Review (1)

1-5 omitted

6. Set each exercise book to X yuan. 2X+ 1.8 = 4X-2.4 2X = 1.8+2.4 2X = 4.2 X = 2. 1 2X+ 1.8 = 2×2. 1+ 1.8 = 4.2+ 1.8 = 6

Review (2)

1-5 omitted.

☆6. Solution: X days after shipment. 2× 150 x = 350 x+900 500 x = 350 x+900 150 x = 900 x = 6 250 x = 250 x = 1500t 350 x+900 = 350 x 6+900 =

The first unit test

1.8XX+88x-X2X+ 10 2.5 x3x+2.5x×2 1 1+X+35s÷2÷5 5

Second, ③, ②, ③, ②, ③.

Third, ellipsis

4. 1-2 omitted, 3. Solution: The two cars will meet in X hours. 58X+25+62X = 985 120 X+25 = 985 120 X = 960 X = 8

4. Omit. 5. Solution: Huawei X Yuan. 2× (x-30 = x+85-30 2x-60 = x+55x =15x+85 = 1 15+85 = 200 (floret1/.

Unit 2: Understanding of Cuboid and Cube (1)

1 fill in the blanks. (1)6, 12, 8.(2) rectangle, 6㎝, 5㎝, 4㎝, 30 square centimeters, rectangle, 5㎝, 4㎝, 20 square centimeters. (3) Rectangular, 4㎝, 7㎝, 4㎝, square, 16㎝? , rectangle, 7㎝, 4㎝, 28㎝? .

2. Choice: ③, ①.

☆3 ellipsis.

Understanding of Cuboid and Cube (2)

1( 1) squared, 6, 12, 8, 4, 48 squared, 4, 16 (2) 15, 85, 5 1, squared and 6544.

2.60÷ 12=5㎝ 5×5=25㎝? (The side length is 5㎝, and the bottom area is 25㎝? )

☆3: 10×4=40㎝ 8×4=32㎝ 92-(32+40)=20㎝ 20÷4=5㎝ 10×8=80㎝? (height 5㎝, bottom area 80㎝? )

Surface area of cuboid and cube (1)

1. Fill in the blanks (1) 40,40,50,130 (2)15,6, 10, 162.

2: 3× 6× 2 = 36 square decimeter 4×6×2=48 square decimeter 3×4×2=24 square decimeter 36+24+48= 108 square decimeter (Xiao Gang thought)

(3×6)+(3×4)+(4×6)×2= 108 square decimeter (Xiao Juan thought)

3:(2×4)+(2×4)+(4×4)×2=64 square decimeter

☆4:30÷ 12=2.5㎝ 2.5×2.5=6.25㎝? 6.25×6=37.5㎝? (The bottom area is 6.25㎝? , surface area of 37.5㎝? )

Surface areas of cuboids and cubes (2)

1:②、①、②

2、94㎝? 、0.64㎡、384dm?

3. 1 m = 10 decimeter (10× 4+4× 410× 4) × 2 =192 square decimeter192-(4×

4. (8×10+6×/kloc-0+6× 8) × 2 = 376 square decimeter 376-6×8=328 square decimeter.

☆5:、96÷ 12㎝ 8×8×6=384㎝? 384-64=320㎝?

Surface areas of cuboids and cubes (3)

Omit 1

2、①、②

Omit 3-5

☆6、( 12× 1+ 1× 1+ 12×)×2=50㎝?

Volume of cuboid cube (1)

1, (1)-(3) slightly (4) cubic centimeters (5) cubic decimeter (6) liters.

2 choice, ③, ②, ②

3,32 cubic centimeters, 64 cubic centimeters, 72 cubic centimeters, 1 12 cubic centimeters.

Volumes of cuboids and cubes (2)

1-3 omitted

4,6 meters =60 decimeters 4×4= 16 square decimeters 60×4×4=960 cubic decimeters (cross-sectional area 16 square decimeters, volume 960 cubic decimeters)

5 ellipsis

Volumes of cuboids and cubes (3)

Omit 1

2、①、③

Omit 3-4

☆5、 10÷2=5㎝ 10×5×5=250㎝? (Volume 250㎝? )

Volumes of cuboids and cubes (4)

1、( 1)56、 1 12、64(2)、2、24、8 (3)、3、 1、 1、 14、3

2, fill in the form 384㎝? 、5 12㎝? 、 184dm? 、 160dm?

Omit 3-4

☆5、60÷3=20㎝ 20÷4=5㎝ 5+3=8㎝ 5×5×8=200㎝? (Volume 200㎝? )

Promotion rate between unit of volume (1)

1( 1)700、37、3240、6500、0.74、 1.25 (2)350、247、3500、2470

2-6 Omission

Promotion rate between unit of volume (2)

1, cubic centimeter, cubic decimeter, cubic centimeter, cubic meter, liter

2、700、5470、3600、3.8、3800、0.2、4900、4.9、2.5、750、750、4、2.4、2400

Omit 3-5

Promotion rate between unit of volume (3)

1, 3600,814,0.814,0.13,5 liters of 90 ml, 5090.

(2)>、=、、>、、=

3, 4, 5 ellipsis

Fractional Division Application (1)

1, total length ×4/7= repair length, number of girls ×4/5= number of boys, number of black rabbits × 1/8= number of white rabbits compared with the number of black rabbits, planned amount ×110 = actual savings compared with planned amount.

2, 3, 4 and 5 are omitted.

Application of Fractional Division (2)

Omit 1

2.9/10 ÷ 3/4× 9/10 = 27/25 (m2)

3,6/5 ÷ 2/5× 3/4 = 9/4 (km)

4.240×3/4÷6/7=2 10 (person)

check against the authoritative text

leave out

Unit 4 Testing

Illo

Fill in the blanks, 7/ 10, 5/8, 2/5, 10,10, 8/9÷4, 8/9× 1/4, >

Three choices, ①, ②, ①, ②.

Fourth, omit 1, 2,240× 2/3 ÷ 4 = 40 (page)

3, 4, 5 ellipsis

The meaning of ratio

1、5:7、5/7、7:5、7/5、32:5、32/5、4、9、4/9、 19、 16、 19、 16、5:4、5:4

2 ellipsis

3、9/5、 15/4、40

4. The travel time ratio of car A and car B is 6: 10, which is simplified to 3:5.

3÷5=3/5 ratio: 3/5.

The speed ratio between car A and car B is 80:48, which is simplified to 5:3.

5÷3=5/3 The ratio is 5/3.

Basic properties of ratio

1、32、30、28、 1: 1 1、5:6

2 ellipsis

3. Omission

4、2:7、3: 10、2:7

Application of ratio

1、4、5、9、4/9、5/9、2 1/65、9/26、43/ 130

2 ellipsis

3 omitted, 4( 1)400÷ 100=4(G)

(2) 1+ 100 = 10 1 3030÷ 1× 1 = 30(g)3030÷ 1008。

Unit 5 Testing

A blank, 2/3, 1/3, 15, 15,16,15,12,40,5: 4,/kloc-

2. Judgment, √, ×, √, √.

Three calculations

Omitted four 1, 2, 3, 4 and 5.

midterm examination

Fill in the blanks, 4/5, 1/6, 4/5, 15/8, 8/ 15, 7080, 2.25, 10 liter 50 ml, 3 minutes and 30 seconds, 72, 32.

Select ①, ②, ③, ③.

Three calculations

Omit four 1-6.

7. Surface area of cuboid: 10a? 4×2=8dm cubic surface area: 6a? 8×4×4= 128dm?

10a? -6a? =64 4a? =64 a? = 16a = 4 (the original cuboid wood volume is 128 cubic decimeter)

Abbreviation of fractional elementary arithmetic unit

The problem-solving strategy unit is omitted (these two units are relatively simple and don't write answers)

Unit 6 and Unit 7 Testing

A blank, 3/8, 16, 12, 9,11,289/70, 70/289, 3/7, 3/4, last year's income.

Two calculations are omitted.

Three choices, ③, ③, ②, ②,

4 PCs 1-5 omitted, 6 PCs, set, with x large bottles and 60-X small bottles. 4X+(60-X)×0.5 = 100 4X- 1/2X = 70 7/2X = 70 X = 20 60-X = 60-20 = 40

7. Solution: pear X box and apple 2/5X box. X+2/5x = 700 7/5x = 700x = 500 2/5x = 200 (200 boxes of apples and 500 boxes of pears).

8,26÷ 1/5 = 130(a) 130×4/5 = 104(a) 104×7/ 13 = 56(a)

The possibility is slim.

Significance of percentage

1, omitted

2、√、√、√、√、√

Conversion between Percent, Decimal and Fraction

Percentage unit abbreviation (simple unit abbreviation)

Unit 8 and Unit 9 Testing

Blank sheet, 4/3, 1. 13, 4, 25, 80, 12.5, 0. 125,18,96, unqualified, 4,/kloc.

Do a little calculation

3. Judgment, √, ×, √×.

Fourth, choose, ②, ②, ③, ①.

Five operational strategies

Sixth, ellipsis

final test

Simple calculation

Fill in the blanks, cuboid, 2,3500, 0.6,750, 36, ②, ①, 4.5, 30, 2:3, 3:5, 64, 37.5, 1/40, 62.5, 75, 95, 65438.

Draw "√"1,8,2,15,3,16/9,4,10; 1, 5, 1/2, 6, cannot be determined.

Wood unit of volume