## Engage NY Eureka Math 2nd Grade Module 7 End of Module Assessment Answer Key

### Eureka Math Grade 2 Module 7 End of Module Assessment Answer Key

Note: Do not pass out rulers until after students complete Problem 1(a).

Question 1.
a.
Estimate the length of each item in inches.

The envelope is about ____ inches.

The envelope is about 3.82  inches.

The pencil is about ____ inches

The pencil is about 5.7  inches.

The crayon is about ____ inches.

The crayon is about 3.07  inches.

The scissors are about ____ inches.

The scissors is about 4.9  inches.

b. Use a ruler to measure the length of the items above using inches and then centimeters. Round to the nearest unit, and then record the measurements in the table.

 Envelope Pencil Crayon Scissors ______ inches ______ centimeters ______ inches _____ centimeters ______ inches ______ centimeters ______ inches ______ centimeters

 Envelope Pencil Crayon Scissors 3.8 inches 10 centimeters 5.7 inches 15 centimeters 3.07 inches 8 centimeters 4.88 inches 13 centimeters

Envelope
The envelope is about 3.81 inches.
Converting  3.81 inches into cm
3.81 in ÷ 0.3937 = 9.7 cm
Rounding to the nearest cm = 10 cm
The envelope is about 10 cm.
Pencil
The pencil is about 5.70 inches.
Converting  5.70 inches into cm
5.70 in ÷ 0.3937 = 14.5 cm
Rounding to the nearest cm = 15 cm
The envelope is about 15 cm.

Crayon
The Crayon is about 3.07 inches.
Converting  3.07 inches into cm
3.07 in ÷ 0.3937 = 7.8 cm
Rounding to the nearest cm = 8 cm
The envelope is about 8 cm.

Scissor
The envelope is about 4.88 inches.
Converting  4.88 inches into cm
4.88 in ÷ 0.3937 = 12.4 cm
Rounding to the nearest cm = 12.4 cm
The envelope is about 13 cm.

c. The envelope is ______ centimeters longer than the crayon.
Length of envelope = 10 cm
Length of Crayon = 8 cm
Difference in length = 10 cm – 8 cm = 2 cm
The envelope is 2 centimeters longer than the crayon.

d. For each measurement, which is greater, the number of inches or the number of centimeters?
For the given measurement number of centimeters are greater than inches.

e. Explain why.
When converting from a larger to a smaller unit, you will always have more of the smaller units. When converting from a smaller to a larger unit, you will always have fewer of the larger units. A centimeter is smaller than an inch, so a given length will have more centimeters than inches.

Question 2.
Circle the appropriate tool for measuring each object.

a. The length of a book:         12-inch ruler       yardstick

b. The height of a flagpole:   12-inch ruler        yardstick

c. The length of a paper clip: 12-inch ruler        yardstick

d. The height of a doorway:  12-inch ruler         yardstick

Question 3.
a. What number is represented as Point A on the number line?

b. What is the distance between A and B?

c. What is 40 less than the number marked by Point C? Mark it as Point D on the number line.

Question 4.
Use the tables below to graph the data.

a. Draw and label a line plot to show the length of the pencils in the table.

 Length in Inches Number of Pencils 1 inch 0 2 inches 2 3 inches 4 4 inches 4 5 inches 3 6 inches 2 7 inches 5

b. Find the total number of pencils measured.

c. Draw and label a bar graph to show the number of pencils in each student’s desk.

 Student Name Jill Sven Rocco Lyla Number of Pencils 4 2 5 1

Title: __________