By accessing our **180 Days of Math for Fifth Grade Answers Key Day 72 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Fifth Grade Answers Key Day 72

**Directions Solve each problem.**

Question 1.

Subtract 37 from 91.

______________

Answer: 54

Explanation:

By subtracting 37 from 91,

we get difference 54

Question 2.

Answer: 81

Explanation:

Multiplying the numbers 27 and 3,

we get the product 81

Question 3.

Is 8 a factor of 64?

______________

Answer:

Yes, 8 is a factor of 64

Explanation:

When we divided 64 with 8,

we get the remainder zero.

division is inverse operation of multiplication.

64 ÷ 8 = 8 x 8 => 64

Question 4.

Round 13,649 to the nearest thousand.

______________

Answer:

14,000

Explanation:

Rounding to the nearest thousand means,

rounding the decimal to its nearest thousandth.

the digit next to the thousandth is less than 5,

then round down to the nearest thousand.

Question 5.

Answer: 3

Explanation:

Let the unknown number be x

x = \(\frac{6×5}{10}\)

x = \(\frac{30}{10}\) = 3

Question 6.

3 × 6 – 2 × 7 = ____

Answer: 4

Explanation:

3 × 6 – 2 × 7 is a combined operation.

18 – 14 = 4

Question 7.

36 + = 73

Answer: 37

Explanation:

Let the unknown number be x

36x = 73

x = 73 – 36

x = 37

Question 8.

4L = ____ mL

Answer:

4,000ml

Explanation:

1 liter = 1000ml

4 L = 4 x 1000

= 4,000ml

Question 9.

Which line is parallel to E?

Answer:

Line C

Explanation:

parallel lines are two lines in the same plane at equal distance from each other and never meet.

So, line C is parallel to line E

Question 10.

What is the term for the difference between the lowest value and the highest value in a data set?

_____________________

Answer:

Range

Explanation:

The Range is the difference between the lowest and highest values.

Example: In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9.

Question 11.

Is it impossible, likely, certain, or unlikely that you will always land on heads when flipping a quarter?

______________

Answer:

Unlikely

Explanation:

When we flip a coin it is unlikely to land heads always.

Only 50% of possibility is there.

Question 12.

Complete the web by multiplying the center number by each number around it.

Answer:

Explanation:

By multiplying the center number 39 by each number around it,

we get the product of that numbers.

for example; 39 x 2 = 78