By accessing our **180 Days of Math for Fifth Grade Answers Key Day 39 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Fifth Grade Answers Key Day 39

**Directions Solve each problem.**

Question 1.

79 + 13 = ____

Answer: 92

Explanation:

Adding two or more addends,

we get the sum.

So, 79 + 13 = 92

Question 2.

7 × 20 = ___

Answer: 140

Explanation:

When we multiply the numbers 7 and 20,

we get the product = 140

Question 3.

36 ÷ 9 = ______

Answer: 4

Explanation:

Question 4.

Round 1,693 to the nearest thousand.

_____________

Answer:

1,700

Explanation:

The rounding of numbers to the nearest thousandth means rounding of any decimal numbers to its nearest thousandth value.

1,693 is nearest to 1,700

Question 5.

Double $3.45.

_____________

Answer:

$6.9

Explanation:

Double $3.45

Doubling the number means adding the number to itself.

$3.45 + $3.45 = $6.9

Question 6.

8 + (49 ÷ 7) = ____

Answer: 15

Explanation:

The given equation is a combined combination.

8 + (49 ÷ 7)

= 8 + 7

= 15

Question 7.

42 + = 51

Answer: 9

Explanation:

42 + = 51

Let the unknown number be x

42 + x = 51

x = 51 – 42

x = 9

Question 8.

5,000 mL = ___ L

Answer:

5 liters

Explanation:

1 liter = 1000 ml

5,000 ml = 5 L

Question 9.

True or false? The circumference of a circle is the distance around the outside of the circle.

_____________

Answer:

True

Explanation:

The circumference of a circle is the distance around the outside of the circle,

it is measured as perimeter.

The perimeter of a circle is 2πr.

Question 10.

You want to create a survey to find out where your classmates were born. What would be a good question to ask?

______________________

______________________

Answer:

what is your birth place?

Explanation:

Answer many vary from student to student.

what is your birth place?

Is the best question for finding the place of birth of our classmates in survey.

Question 11.

If you spin the spinner 4 times, how many times are you likely to land on blue?

_____________

Answer:

0.25 times on blue

Explanation:

0.25 is the probability of for every spin

spinner landing on blue is having the probability of 0.25

0.25 is the probability of for every spin

if we divide the spinner into equal parts 2 reds and 1 blue and 1 green

total 4 events for one spin

4 x 4 = 16 events after 4 spins

\(\frac{4}{16}\)

\(\frac{1}{4}\)

Question 12.

Look at the figure below. How many equal line segments are needed to make a row of 25 triangles?

_________________________________

Answer:

5 line segments

Explanation:

Number of line segments needed to make a row of 25 triangles are 5

5 x 5 = 25