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Article sharing techniques to solve Grade 4 Math Page 155 - Map Ratios in Textbook exercises 1, 2, 3. Students who may not grasp and apply map-solving exercises can consult our Grade 4 Math Page 155 solving guide to simplify their learning and classroom tasks.
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Guide to solve Grade 4 Math Page 155 - Map Ratios (Including Solution Methods)
1. Solving Grade 4 Math Page 155, Exercise 1
Problem Statement:
On a map with a ratio of 1 : 1000, each length of 1mm, 1cm, 1dm corresponds to what actual length below?
1000dm; 1000cm; 1000 mm
Solving Method:
- Applying knowledge: On a map with a ratio of 1:1000, a length of 1mm corresponds to an actual length of 1000mm.
- Applying similar reasoning to the remaining questions.
Answer:
On the map with a ratio of 1:1000, we have:
- A length of 1mm corresponds to an actual length of 1000mm
- A length of 1cm corresponds to an actual length of 1000cm
- A length of 1 dm corresponds to an actual length of 1000 dm
2. Solving Grade 4 Math Page 155, Exercise 2
Problem Statement:
Fill in the blanks with the appropriate numbers:
Solution Method:
- Use the map ratio to shrink the lengths on the map and determine the actual length of each square.
Answer:
3. Solving Grade 4 Math Map Ratios Page 155, Exercise 3
Problem Statement:
Correctly record 'D' for right, 'S' for wrong
On a map with a scale of 1:10,000, the measured distance from A to B is 1dm. Therefore, the actual length of the distance from A to B is:
a) 10,000m b) 10,000dm
c) 10,000cm d) 1km
Solution Method:
- Step 1. On a map with a scale of 1:10,000. Thus, the length of 1dm on the map corresponds to a real length of 10,000 dm
- Step 2: Convert the actual length (dm) into various measurement units (cm, m, km) to find the correct answer.
Answer:
The actual length of the distance from A to B is:
1 x 10,000 = 10,000dm = 1km = 100,000 cm = 1,000 m
So, we fill in the blanks as follows:
a) Wrong c) Wrong
Option B) - Explore the concise solution for the fourth-grade math problem on page 155. Decode the map ratio challenge with ease.
Quick Guide to 4th Grade Math Problem Solving on Page 155
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Above is the solution for the 4th-grade math problem on page 155, discussing the map ratio exercise in the 4th-grade math exercise section. For further mastery of 4th-grade math, students can review the previously solved 4th Grade Math Solution on Page 153 or preview the 4th Grade Math Solution on Page 157 for practice and skill enhancement.
