By accessing our **180 Days of Math for Fourth Grade Answers Key Day 21 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Fourth Grade Answers Key Day 21

**Directions Solve each problem.**

Question 1.

26 + 13 = ___

Answer:

26 + 13 = **39**

Explanation:

Perform addition operation on above two given numbers. Add 26 with 13 the sum is 39.

Question 2.

\(\frac{1}{8}\) of 24 is ___

Answer:

\(\frac{1}{8}\) x 24 = 3

So, \(\frac{1}{8}\) of 24 is **3**.

Explanation:

Perform multiplication operation on above two given numbers. Multiply 1/8 with 24 the product is 3. So, 1/8 of 24 is **3**

Question 3.

Answer:

Explanation:

Perform division operation on above two given numbers. Divide 20 by 5 the quotient is 4.

Question 4.

56 Ã· 8 = ___

Answer:

56 Ã· 8 = **7**

Explanation:

Perform division operation on above two given numbers. Divide 56 by 8 the quotient is 7.

Question 5.

What is the place value of 9 in 918?

______________

Answer:

The place value of 9 in 918 is **hundreds**.

Explanation:

The order of place value of digits of a number starts from right to left. The value of the digits are units, tens, hundreds, thousands, ten thousand, a hundred thousand, and so on.

Question 6.

Fill in the missing number.

8, 12, 16, ___, 24

Answer:

The given series is 8, 12, 16, ___, 24.

The difference between 8 and 12 is 4.

12 – 8 = 4

The difference between 12 and 16 is 4.

16 – 12 = 4

So, add 4 to the number 16 in the series. The sum is 20.

16 + 4 = 20

The missing number in the given series is **20**.

Now, the series is 8, 12, 16, **20**, 24

Question 7.

Write the line length in centimeters.

_____________

Answer:

In the above image we can observe a scale with units as centimeters. The black line is starting at 0 cm and ending at 3.0 cm. So the total line length isÂ **3.0 centimeters.Â **

Question 8.

If you wanted a glass of water, would you pour a cup or a gallon of water?

_____________

Answer:

If I wanted a glass of water, I would pour in a** cup**.

Question 9.

Draw the axes of symmetry.

Answer:

Drawn the axes of symmetry. A line through a shape so that each side is a mirror image.

Question 10.

Write two odd numbers that total the even number 8.

_____________

Answer:

**1 + 7 = 8**

The two odd numbers that total the even number 8 is 1 and 7.

**3 + 5 = 8**

The two odd numbers that total the even number 8 is 3 and 5.