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Guidance for solving exercises 1, 2, 3, 4 in the Exercise Book Exercise 92 is all covered in the document Solving 4th-grade math on page 10 of VBT Exercise Book 2, Practice, exercise 92. If you're unsure how to proceed, feel free to refer or compare to ensure your solution aligns with the correct standard.
Solving 4th-grade math challenge on page 10 of VBT Exercise Book 2, Practice, exercise 92
1. Solve problem 1 - Workbook math exercises for 4th grade Book 2 page 10
Problem Statement:
Fill in the blanks with the appropriate numbers
50m2 = ....dm2
900dm2 =.........m2
2010m2 = .........dm2
51 million m2 = .........km2
10km2 = ........ m2
2 million m2 = .........km2
Solution Approach
Based on the conversion method:
1km2 = 1000000m2 ;
1m2 = 100dm2 ;
1dm2 = 100cm2 .
Answer
50m2 = 5000dm2
900dm2 = 9m2
2010m2 = 201000dm2
51 million m2 = 51km2
10km2 = 10000000 m2
2 million m2 = 2km2
2. Solve problem 2 - Workbook math exercises for 4th grade Book 2 page 10
Problem Statement:
Fill in the blanks following the pattern
1980000dm2 = 1980m2 = ...cm2
90000000cm2 = ...m2 = ...dm2
98000351m2 = ...dm2 = ...cm2
Solution Approach
Based on the conversion method:
1km2 = 1000000m2 ;
1m2 = 100dm2 ;
1dm2 = 100cm2 .
Answer
1980000dm2 = 1980m2 = 1980000000cm2
90000000cm2 = 9000m2 = 900000dm2
98000351m2 = 9800035100dm2 = 980003510000cm2
3. Solve problem 3 - Workbook math exercises for 4th grade Book 2 page 10
Problem Statement:
Fill in the appropriate measurements
Rectangle (1), (2), (3)
: Length: 8km, Width: 5km, Area: ...
: Length: 8000m, Width: 6km, Area: ...
: Length: 13000m, Width: 11000m, Area: ...
Solution Approach
Area of a rectangle = length x width.
The area measurement can be converted to square kilometers, keeping in mind that 1km2 =1000000m2.
Answer
Area: 40km2
Area: 48km2
Area: 143km2
4. Solve problem 4 - Workbook math exercises for 4th grade Book 2 page 10
Problem Statement:
Circle the letter in front of the correct answer
A square forest has sides measuring 5000m. The area of the forest is:
A. 20 000m2
B. 25 000m2
C. 25km2
D 2km2 5000m2
Solution Approach
Area of a rectangle = length x width.
The area measurement can be converted to square kilometers, keeping in mind that 1km2 =1000000m2.
Answer
The forest area is:
5000 x 5000 = 25 000 000 (m2)
Converted: 25 000 000m2 = 25km2
Correct answer: C
Above is the guidance for solving Workbook math exercises for 4th grade Book 2 page 10, Practice, Exercise 92. Continue reading the instructions for Solving 4th-grade math on page 11, 12 of VBT Exercise Book 2 - Parallelogram, exercise 93, and review Solving 4th-grade math on page 9 of VBT Exercise Book 2 - Square Kilometers, exercise 91.
