By accessing our **180 Days of Math for Fourth Grade Answers Key Day 9 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Fourth Grade Answers Key Day 9

**Directions Solve each problem.**

Question 1.

Calculate the sum of 12, 4, and 8.

_____________________

Answer:

12 + 4 + 8 = **24**

Explanation:

Perform addition operation on above three given numbers. Add 12 to 4 and 8 the sum is 24.

Question 2.

How many eighths are in one whole?

_____________________

Answer:

1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 = 1

There are **8 eighths** in one whole.

Explanation:

Perform addition operation to get one whole. Add eight 1/8 eighths to get one whole.

Question 3.

Divide 16 into 4 equal groups.

_____________________

Answer:

16 ÷ 4 = **4**

Explanation:

Perform division operation on above two numbers. Divide 16 by 4 the quotient is 4.

Question 4.

36 ÷ 4 = ____

Answer:

36 ÷ 4 = **9**

Explanation:

Perform division operation on above two given numbers. Divide 36 by 4 the quotient is 9.

Question 5.

Circle the largest number.

639 963 936

Answer:

The given numbers are 639 963 936.

The ascending order of given numbers are 639, 936, 963.

The largest number in the given numbers is **963**.

So, 963 should be circled.

Question 6.

2 × = 12

Answer:

2 × = 12

Explanation:

To get the product 12 we need to perform multiplication operation. Multiply 2 with 6 the product is 12. So the missing multiplicand is 6.

Question 7.

_____ mm = 1 cm

Answer:

we know that,

**10 mm** = 1cm

Question 8.

Which would be the best measuring tool for the length of a shoelace: a yardstick, a scale, or a clock?

_____________________

Answer:

The best measuring tool for the length of a shoelace is** yardstick**.

Question 9.

Color the polygons.

Answer:

Both square and triangle are colored as we can observe in the above image.

Explanation:

A polygon is a two-dimensional figure which has a finite number of sides. A square is a polygon with four equal sides. A circle is a plane figure but it is not considered a polygon because it does not have sides or angles. A triangle is a polygon with three sides. So, both square and triangles are colored.

Question 10.

Last year Nick was 58 cm tall. He has grown 13 cm. What is his height now?

_____________________

Answer:

Last year Nick was 58 cm tall. He has grown 13 cm.

Here we have to perform addition operation.

Add 58cm with 13 cm.

58 cm + 13 cm = 71 cm

Now, his height is **71 cm**.