By accessing our **180 Days of Math for Sixth Grade Answers Key Day 57 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Sixth Grade Answers Key Day 57

**Directions Solve each problem.**

Question 1.

72 – 39 = ____

Answer:

72 – 39 = 33.

Explanation:

The subtraction of 72-39 which is 33.

Question 2.

29 Ã— 2 = ___

Answer:

29 Ã— 2 = 58.

Explanation:

The multiplication of 29 and 2 is 29 Ã— 2 which is 58.

Question 3.

790 Ã· 10 = ___

Answer:

790 Ã· 10 = 79.

Explanation:

The division of 790 by 10 is 790 Ã· 10 = 79.

Question 4.

Is 5 a factor of 30? ___

Answer:

Yes.

Explanation:

Yes, 5 is a factor of 30.

Question 5.

Does 0.75 = \(\frac{3}{4}\)? ____

Answer:

Yes.

Explanation:

Given the fraction is \(\frac{3}{4}\) and it is equal to 0.75.

Question 6.

1^{2} + 2^{2} + 3^{2} = ___

Answer:

1^{2} + 2^{2} + 3^{2} = 14.

Explanation:

Given 1^{2} + 2^{2} + 3^{2} which is 1+4+9

= 14.

Question 7.

\(\frac{3}{4}\) 0f 20 is _____

Answer:

\(\frac{3}{4}\) 0f 20 is 45.

Explanation:

Given that \(\frac{3}{4}\) 0f 20 which is

\(\frac{3}{4}\) Ã— 20

= 3 Ã— 15,

= 45.

Question 8.

Find a. 25 – a = 12

a = _____

Answer:

a = 13.

Explanation:

Given the expression is 25 – a = 12,

a = 25-12,

= 13.

Question 9.

How many centimeters are in 5.64 meters?

_____________

Answer:

564 cm.

Explanation:

As 1 meter is 100 cm, so

5.64 m = 5.64Ã—100

= 564 cm.

Question 10.

How many vertices are on the solid below?

____________

Answer:

8 vertices.

Explanation:

The above image is a rectangular prism and it has 8 vertices.

Question 11.

Look at the set of shapes below. What is the probability of picking a square?

_______________________

Answer:

The probability of picking up square is \(\frac{1}{11}\).

Explanation:

There are 11 shapes, so the probability of picking up square is \(\frac{1}{11}\).

Question 12.

Add to find the total bill. Round the total to the nearest five cents and find the change from $20.00.

Answer:

The total is $12.30 and the change is $7.7.

Explanation:

The nearest five cents will be $2.00+$0.80+$4.00+$2.80+$2.70 = $12.3. So the change will be $20.00 – $12.30 which is $7.7.