By accessing our **180 Days of Math for Sixth Grade Answers Key Day 115 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Sixth Grade Answers Key Day 115

**Directions: Solve each problem.**

Question 1.

Find the sum of 38 and 46.

Answer: Sum is nothing but addition

38 + 46 = 84

Question 2.

-5 • 65 = __________

Answer:

– × + = +

-5 × 65 = -325

Question 3.

462 ÷ 10 = _________

Answer: 462 ÷ 10 = 46.2

Question 4.

What is the next prime number after 7?

Answer: The next prime number after 7 is 11.

Question 5.

Is \(\frac{4}{10}\) + \(\frac{6}{100}\) equal to 0.045?

Answer:

\(\frac{4}{10}\) can be written as 0.4

\(\frac{6}{100}\) can be written as 0.06

0.4 + 0.06 = 0.46

So, \(\frac{4}{10}\) + \(\frac{6}{100}\) is not equal to 0.045.

Question 6.

15 + 7 × 5 – 4 = __________

Answer:

15 + (7 × 5) – 4

15 + 35 – 4

15 + 31 = 46

Question 7.

10% of is 9.

Answer:

10 % × x = 9

10/100 × x = 9

10 × x = 9 × 100

10x = 900

x = 900/10

x = 90

Question 8.

Find m.

25 – m = 25.5

m = ___________

Answer:

25 – m = 25.5

25 – 25.5 = m

m = -0.5

Question 9.

What is the area of a square with 7-cm sides?

Answer:

Side of the square = 7 cm

We know that,

Area of a square = s × s

A = 7 × 7

A = 49 sq.cm

Question 10.

Use a protractor to measure the angle. Then identify it as either acute, reflex, obtuse, or straight.

Answer:

Reflex angle with 270 degrees

Question 11.

Misty’s mom told her she can participate in two sports this fall. She can choose from soccer, basketball, swimming, and tennis. List all the possible combinations of sports she can choose.

Answer:

(Soccer, Basket ball), (soccer, swimming), (soccer, tennis)

(swimming, Basket ball), (soccer, swimming), (swimming, tennis)

(tennis, Basket ball), (soccer, tennis), (swimming, tennis)

The possible combinations of sports are 9.

Question 12.

Some classrooms have 35 chairs while others have only 30. The total number of chairs in 10 classrooms is 330. How many classrooms have 35 chairs?

Answer: 330/10 = 33

6 class room have 35 chair where as 4 classroom have 30 chairs