Go through the **Spectrum Math Grade 2 Answer Key Chapter 6 Posttest **and get the proper assistance needed during your homework.

## Spectrum Math Grade 2 Chapter 6 Posttest Answers Key

**What You Learned**

**Measurement**

Estimate the length of each object. Then, use a ruler to measure each object ¡n inches and centimeters.

Which object is shorter? crayon paper clip

Answer:

Step 1: Place the crayon beside the ruler, starting from point 0 on it.

Step 2: Look at the endpoint and mark the value.

Step 3: The crayon is 4 cm long when measured using cm ruler and is about 2 inches long.

Now, place the paper clip beside the ruler and measure the length.

The length of paper clip is 2 cm when measured using cm ruler and is about 1 inch long.

Thus, we can say paper clip is shorter than crayon.

Is the crayon made up of more centimeters or inches? _______

Answer:

The crayon is 4 cm long when measured using cm ruler and is about 2 inches long.

From the above numbers, we can say crayon is made up of more centimeter than inches.

Which is shorter-a centimeter or an inch? ___________________

Answer:

When converting from a larger unit to smaller units, we will have the more of smaller units.

From the above numbers, we can observe that the measurements in centimeter is more when compared to those in inches.

Thus, we can say that the centimeter is shorter than inches.

**Create a line plot based on the measurements below.**

Answer:

The horizontal line represents the measurements in inches.

There are three 1 in. measurements in the given record so mark 3 points on it.

The count for 2 in., 4 in., and 8 in. are one, so mark one point on each.

The count for 5 in., 6 in. and 10 in. two, so mark 2 points above 5 in.

**Write the time shown.**

Answer:

The short hand tells the hour. It is on the 12.

The long hand tells the minutes. It is on 6, meaning it is at 30 mins.

Therefore, the time will be half past 12 or

12:30

Answer:

In the above clock, the hour side says 6 and the min clock shows 00.

Therefore, the time will be 6’o clock or

06:00

Answer:

The short hand tells the hour. It is on the 9.

The long hand tells the minutes. It is on 3, meaning it is at 15 mins.

Therefore, the time will be 9:15 or 15 minutes past 9.

**Use the picture graph to answer the questions. Each picture equals one person.**

Which sport did most people choose? ________

Answer:

In the above pictograph, each sport picture resembles to a person.

As the count of numbers in soccer sports is more when compared to the other sports.

We can say that most of the people chose Soccer.

Which sport did 7 people choose? ________

Answer:

There are 7 balls for the baseball sports which resembles 7 people.

Thus, we can say that 7 people chose Baseball.

How many people chose football or basketball? ______

Answer:

Number of people who chose football is 5.

Number of people who chose basketball is 6.

Therefore, the number of people who chose football or basketball will be 5+6=11

**Use the number line to add or subtract.**

Answer:

Addition means moving forward or moving to the right.

The bigger number is 50, so start from 50 and move 25 times towards the right or in forward direction.

Thus, the sum will be 75.

Answer:

Subtraction means moving backwards or moving to the left.

The bigger number is 95 and the smaller number of 35.

To subtract 35 from 95, move 35 points backward from 90.

**Solve each problem.**

Jordan was selling frozen treats.

Blake gave Jordan 2 quarters and 2 nickels.

How much did Blake pay for the treat? ________

Answer:

Given that Jordan was selling frozen treats and Blake gave Jordan 2 quarters and 2 nickels.

To add them together, first we will convert them into same currency.

We know that, 1 quarter equals to 25 cents.

1 nickel equals to 5 cents.

Blake gave Jordan 2 quarters and 2 nickels.

= 2×25 + 2×5

= 50+10

= 60 cents.

Matthew’s dad is 70 inches tall.

Orlando’s dad is 78 inches tall.

How much taller is Orlando’s dad than Matthew’s? ______

Answer:

Given that Matthew’s dad is 70 inches tall and Orlando’s dad is 78 inches tall.

78-70=8

Thus, we can say Orlando’s dad is 8 inches taller than Matthew’s.

Megan has $4.00.

She earns $2.50 more.

How much money does Megan have now? ______

Answer:

Given that Megan has $4.00 and she earns $2.50 more.

4+2.50 = 6.50

Thus, Megan will have $6.50 now.

Erica has $0.55.

Later, she finds $0.25.

How much money does Erica have now? _______

Answer:

Given that Erica has $0.55 and later, she finds $0.25.

0.55+0.25=0.80

Therefore, Erica will have $0.80

Hannah’s dog can jump 8 feet in the air.

Maricela’s dog can jump 6 feet in the air.

How much higher can Hannah’s dog jump than Maricela’s? _____

Answer:

Given that Hannah’s dog can jump 8 feet in the air and Maricela’s dog can jump 6 feet in the air.

8-6=2

Hannah’s dog can jump 2 feet higher than Maricela’s.