By accessing our **180 Days of Math for Sixth Grade Answers Key Day 145 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Sixth Grade Answers Key Day 145

**Directions: Solve each problem.**

Question 1.

Answer:

Explanation:

Perform subtraction operation on above two given numbers. Subtract 19 from 236 the difference is 217.

Question 2.

Multiply 145 by 20.

Answer:

145 × 20 = **2,900**

Explanation:

Perform multiplication operation on above two given numbers. Multiply 145 with 20 the product is 2,900.

Question 3.

546 ÷ 8 = __________

Answer:

546 ÷ 8 = **68.25**

Explanation:

Perform division operation on above two given numbers. Divide 546 by 8 the quotient is 68.25.

Question 4.

Write the ordinal number for fifty-one.

Answer:

The ordinal number for fifty-one is **51st**.

Explanation:

The ordinal number represents the position or rank of an object or a person. So, the ordinal number for fifty-one is **51st**.

Question 5.

Find the sum of 1\(\frac{1}{6}\) and \(\frac{1}{3}\).

Answer:

1\(\frac{1}{6}\) = (6 + 1)/6 = **7/6**

1\(\frac{1}{6}\) + \(\frac{1}{3}\)

= 7/6 + 1/3

= (7 +2)/6

= 9/6

= **3/2 or 1 1/2**

Explanation:

Perform addition operation on given numbers. The mixed fraction 1 1/6 in fraction form as 7/6. Add 7/6 with 1/3 the sum is 3/2.

Question 6.

Write the next number in the sequence. 3,064; 3,014; 2,964;

Answer:

The given sequence is 3,064; 3,014; 2,964.

The difference between first two numbers in the sequence is 50.

3,064 – 3014 = 50

The difference between second two numbers in the sequence is 50.

3,014 -2964 = 50

So, subtract 50 from the next number in the sequence number 2,964 the difference is 2,914.

2,964 – 50 = 2,914

The next number in the sequence is 3,064; 3,014; 2,964; **2,914.**

Question 7.

30 × = 600

Answer:

30 × = 600

Explanation:

To get the product 600 we have to perform multiplication operation. Multiply 20 with the given number 30 the product is 600. The missing multiplier is 20.

Question 8.

Find f.

12f = 108

f = _________

Answer:

12f = 108

f = 108/12

**f = 9**

Explanation:

The given expression is 12f = 108. To calculate f value we have to perform division operation on the given numbers. Divide 108 by 12 the quotient is 9. The value of f is equal to 9.

Question 9.

Calculate the volume of a rectangular prism that has side lengths of 6 cm, 4 cm, and 2 cm.

Answer:

Given side lengths = 6 cm, 4 cm, and 2 cm

Volume of a Rectangular Prism = length × base × height

We know the side lengths

V = 6 × 4 × 2

**V = 48 cm ^{3}**

Question 10.

Is a 145° angle obtuse, reflex, or straight?

Answer:

**145° is a obtuse angle**.

Explanation:

**Obtuse angle:**

The obtuse angle is greater than 90 degrees and less than 180 degrees.

**Reflex angle:**

The reflex angle is greater than 180 degrees but less than 360 degrees.

**Straight angle:**

A straight angle is 180 degrees.

Question 11.

What is the mode of this set of data?

601, 611, 621, 611, 631

Answer:

The given sequence is 601, 611, 621, 611, 631.

Mode is defined as the number that occurs more number of times.

The number 601 occurs 1 time.

The number 611 occurs 2 times.

The number 621 occurs 1 time.

The number 631 occurs 1 time.

The mode of the given set of data is **611**.

Question 12.

I am part of a whole, I am greater than one-tenth but less than 13%. My denominator is 8. What number am I?

Answer:

one-tenth = 0.1

13% = 0.13

0.1 > x < 0.13

9/8 = 0.125

So, the unknown number is 0.125