By accessing our **180 Days of Math for Fourth Grade Answers Key Day 77 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Fourth Grade Answers Key Day 77

**Directions Solve each problem.**

Question 1.

17 + 13 = ___

Answer:

Explanation:

OnesÂ Place Value

7 + 3 = 10

Put the 0 in Ones place

Carry the 1 to Tens place

TensÂ Place Value

1 + 1 + 1 = 3

Put the 3 in Tens place

Question 2.

Write 0.53 as a fraction.

______________

Answer:

0.53 = \(\frac{53}{100}\)

Explanation:

To convert the decimal 0.53 to a fraction, just follow these steps:

Step 1: Write down the number as a fraction of one:

0.53 = \(\frac{0.53}{1}\)

Step 2: Multiply both top and bottom by 10 for every number after the decimal point:

As we have 2 numbers after the decimal point, we multiply both numerator and denominator by 100. So,

\(\frac{0.53}{1}\) = Â \(\frac{0.53 X 100}{1 X 100}\) = \(\frac{53}{100}\)

Question 3.

45 Ã· 6 = ______

Answer:

7

Explanation:

We have the equation:

45 Ã· 6 = 7

Calculated to 0 decimal places.

Question 4.

Answer:

6

Explanation:

We have the equation:

30 Ã· 5 = 6

Calculated to 0 decimal places.

Question 5.

Round 457 to the nearest hundred.

______________

Answer:

500

Explanation:

457-400 = 57

500 – 457 = 43

So nearest hundred is 500

Question 6.

Ã· 5 = 9

Answer: 45

Explanation:

Multiplication and division are inversely proportional

c Ã· 5 = 9

c = 9 X 5

c = 45

Question 7.

What is the date of the third Monday in August?

______________

Answer:

19th

Explanation:

Question 8.

What is the length of a rectangle that has a width of 3 inches and an area of 12 in^{2}?

Answer:

length of rectangle is 4 inches

Explanation:

Area of rectangle is length X width

Area = length X width

12 = 3 X width

width = 12 Ã· 3

Width = 4inches

Question 9.

I have one curved surface, no edges, and no corners. What solid am I?

______________

Answer:

Sphere have one curved surface, no edges, and no corners

Explanation:

A sphereÂ has no edges and therefore no corners. It has one curved face that goes all the way around.

Question 10.

If you subtract me from 732, you get 173. What number am I?

Answer:

559

Explanation:

If you subtract me from 732, you get 173. So

732 – c = 173

c= 732 -173

c = 559