Engage NY Eureka Math 2nd Grade Module 7 Lesson 18 Answer Key
Eureka Math Grade 2 Module 7 Lesson 18 Problem Set Answer Key
Measure the lines in inches and centimeters. Round the measurements to the nearest inch or centimeter.
Question 1.
____ cm _____in
Answer:
12.3 cm 4.84 in
Rounding to the nearest inches and centimeter
12 cm 5 in.
Explanation:
Used ruler to measure the line. Ruler with cm and inch reading.
1 cm = 0.3937 in
12.3 cm = 12.3 × 0.3937 = 4.84 in.
measuring inches is bit difficult than measuring centimeters.
Question 2.
____ cm _____in
Answer:
10.2 cm 4.01 in
Rounding to the nearest inches and centimeter
10 cm 4 in
Explanation:
Used ruler to measure the line. Ruler with cm and inch reading.
1 cm = 0.3937 in
10.2 cm = 10.2 × 0.3937 = 4.01 in.
measuring inches is bit difficult than measuring centimeters.
Question 3.
____ cm _____in
Answer:
14.4 cm 5.66 in
Rounding to the nearest inches and centimeter
14 cm 6 in
Explanation:
Used ruler to measure the line. Ruler with cm and inch reading.
1 cm = 0.3937 in
14.4 cm = 14.4 × 0.3937 = 5.66 in.
measuring inches is bit difficult than measuring centimeters.
Question 4.
____ cm _____in
Answer:
7.5 cm 2.95 in
Rounding to the nearest inches and centimeter
7 cm 3 in
Explanation:
Used ruler to measure the line. Ruler with cm and inch reading.
1 cm = 0.3937 in
7.5 cm = 7.5 × 0.3937 = 2.95 in.
measuring inches is bit difficult than measuring centimeters.
Question 5.
a. Did you use more inches or more centimeters when measuring the lines above?
Answer:
I have used more centimeter when measuring the lines above.
b. Write a sentence to explain why you used more of that unit.
Answer:
Centimeter have shorter length units than inches. So, more centimeter are used.
Question 6.
Draw lines with the measurements below.
a. 3 centimeters long
Answer:
b. 3 inches long
Answer:
Question 7.
Thomas and Chris both measured the crayon below but came up with different answers. Explain why both answers are correct.
Thomas: 8 cm
Chris: 3 in
Explaination: ________
Answer:
Both the answers are correct because they have two different measurement units.
8 cm equal to 3.15 inches because 8 times of 0.3937 is equal to 3.15.
Chris Rounded 3.15 in to the nearest 3 inch.
Eureka Math Grade 2 Module 7 Lesson 18 Exit Ticket Answer Key
Measure the lines in inches and centimeters. Round the measurements to the nearest inch or centimeter.
Question 1.
____ cm _____in
Answer:
Explanation :
1 cm = 0.3937 in
9.6 cm = 9.6 × 0.3937 = 3.77 in.
Question 2.
____ cm _____in
Answer:
Explanation :
1 cm = 0.3937 in
14.4 cm = 14.4 × 0.3937 = 5.67 in.
Eureka Math Grade 2 Module 7 Lesson 18 Homework Answer Key
Measure the lines in inches and centimeters. Round the measurements to the nearest inch or centimeter.
Question 1.
____ cm _____in
Answer:
Explanation :
1 cm = 0.3937 in
14.4 cm = 14.4 × 0.3937 =5.67 in.
Question 2.
____ cm _____in
Answer:
Explanation :
1 cm = 0.3937 in
9.6 cm = 9.6 × 0.3937 = 3.77 in.
Question 3.
____ cm _____in
Answer:
Explanation :
1 cm = 0.3937 in
7.3 cm = 7.3 × 0.3937 = 2.87 in.
Question 4.
____ cm _____in
Answer:
Explanation :
1 cm = 0.3937 in
12.1 cm = 12.1 × 0.3937 = 4.75 in.
Question 5.
a. Draw a line that is 5 centimeters in length.
Answer:
b. Draw a line that is 5 inches in length.
Answer:
Question 6.
a. Draw a line that is 7 inches in length.
Answer:
b. Draw a line that is 7 centimeters in length.
Answer:
Question 7.
Takeesha drew a line 9 centimeters long. Damani drew a line 4 inches long. Takeesha says her line is longer than Damani’s because 9 is greater than 4. Explain why Takeesha might be wrong.
Answer:
Question 8.
Draw a line that is 9 centimeters long and a line that is 4 inches long to prove that Takeesha is wrong.
Answer:
