Samacheer Kalvi Class 4 Maths Solutions Term 1 Chapter 4 Measurements Exercise 4.1

Tamilnadu Samacheer Kalvi 4th Maths Solutions Term 1 Chapter 4 Measurements Ex 4.1

Convert Into Centimeter

Question 1. 3 m = ___ cm
Answer: To convert meters to centimeters, we multiply the number of meters by 100, as 1 meter is equal to 100 centimeters. So, for 3 meters, we calculate: \( 3 \times 100 = 300 \) cm. This is a basic conversion unit to remember for length.
In simple words: To change meters into centimeters, just multiply the meter number by 100. So, 3 meters becomes 300 centimeters.

🎯 Exam Tip: Always remember that 1 meter equals 100 centimeters. When converting from a larger unit (meter) to a smaller unit (centimeter), you should multiply.

Question 2. 37 m = ___ cm
Answer: We need to convert 37 meters into centimeters. Since there are 100 centimeters in every meter, we multiply the number of meters by 100. So, \( 37 \times 100 = 3700 \) cm. This conversion is useful for measuring longer distances in smaller units.
In simple words: To change 37 meters into centimeters, multiply 37 by 100, which gives 3700 centimeters.

🎯 Exam Tip: Practice multiplying by 100 quickly by simply adding two zeros to the number when converting meters to centimeters.

Question 3. 5 m 9 cm = ___ cm
Answer: First, convert the meters part to centimeters: \( 5 \text{ m} = 5 \times 100 = 500 \text{ cm} \). Then, add the existing centimeters to this value: \( 500 \text{ cm} + 9 \text{ cm} = 509 \text{ cm} \). This method combines different units into one common unit for easier calculation.
In simple words: Change 5 meters to 500 centimeters, then add the 9 centimeters. The total is 509 centimeters.

🎯 Exam Tip: When converting mixed units (like meters and centimeters), always convert the larger unit first, and then add the smaller unit.

Question 4. 7 m 35 cm = ___ cm
Answer: To find the total centimeters, first convert the 7 meters: \( 7 \text{ m} = 7 \times 100 = 700 \text{ cm} \). After that, add the 35 centimeters that were already given: \( 700 \text{ cm} + 35 \text{ cm} = 735 \text{ cm} \). This process helps to express measurements entirely in a single unit.
In simple words: Convert 7 meters to 700 centimeters. Then add 35 centimeters to get 735 centimeters in total.

🎯 Exam Tip: Always pay attention to the two parts of the measurement – the meters and the centimeters – and make sure to convert and add both correctly.

Convert Into Metre

Question 1. 600 cm = ___ m
Answer: To convert centimeters to meters, we divide the number of centimeters by 100, because 100 centimeters make 1 meter. So, for 600 centimeters, we calculate: \( 600 \div 100 = 6 \text{ m} \). Division is used when moving from a smaller unit to a larger unit.
In simple words: To change centimeters to meters, divide the centimeter number by 100. So, 600 centimeters becomes 6 meters.

🎯 Exam Tip: When converting from a smaller unit (centimeter) to a larger unit (meter), always remember to divide by 100.

Question 2. 3600 cm = ___ m
Answer: To convert 3600 centimeters into meters, we divide by 100 since there are 100 centimeters in 1 meter. So, \( 3600 \div 100 = 36 \text{ m} \). This is the reverse process of converting meters to centimeters.
In simple words: To change 3600 centimeters to meters, divide 3600 by 100, which gives 36 meters.

🎯 Exam Tip: Dividing by 100 means moving the decimal point two places to the left, which is a quick mental math trick.

Question 3. 647 cm = ___ m
Answer: To convert 647 centimeters to meters and centimeters, divide 647 by 100. This gives us 6 with a remainder of 47. So, \( 647 \text{ cm} = 6 \text{ m } 47 \text{ cm} \). The quotient is the meter value, and the remainder is the centimeter value. This helps in understanding parts of a meter.
In simple words: Divide 647 by 100. The answer is 6 meters and 47 centimeters remaining.

🎯 Exam Tip: Remember that the number of hundreds in centimeters tells you the number of full meters, and the rest are the remaining centimeters.

Question 4. 304 cm = ___ m
Answer: To convert 304 centimeters into meters, we perform a division by 100. \( 304 \div 100 \) gives 3 with a remainder of 4. Therefore, 304 centimeters is equal to 3 meters and 4 centimeters. This separation helps in accurately stating the measurement in both units.
In simple words: Divide 304 by 100. You get 3 meters and 4 centimeters left over.

🎯 Exam Tip: When the remainder is less than 10, ensure you write it as "04 cm" if specifically asked for a two-digit centimeter value, otherwise "4 cm" is fine.