By accessing our 180 Days of Math for Sixth Grade Answers Key Day 58 regularly, students can get better problem-solving skills.

Directions Solve each problem.

Question 1.
6 + 6 + 6 + 6 = ___
6 + 6 + 6 + 6 = 24.

Explanation:
The addition of 6 + 6 + 6 + 6 is
= 12 + 12
= 24.

Question 2.
8 Ã— (-30) = ______
8 Ã— (-30) = -240.

Explanation:
The multiplication of 8 and -30 is 8 Ã— (-30) = -240.

Question 3.
490 Ã· 49 = ___
490 Ã· 49 =10.

Explanation:
The division of 490 by 49 is 490 Ã· 49 = 10.

Question 4.
List all of the prime numbers between 10 and 20.
________________
The prime numbers are 11, 13, 17, 19.

Explanation:
The prime numbers are the numbers that are divisible by 1 and itself, so the prime numbers between 10 and 20 are 11, 13, 17, 19.

Question 5.
50% of 12 is ___
50% of 12 = 6.

Explanation:
Given 50% of 12 which is $$\frac{50}{100}$$ Ã— 12
= 6.

Question 6.
(-4) + (-3) + (-2) = ___
(-4) + (-3) + (-2) = -9.

Explanation:
Given the expression is (-4) + (-3) + (-2)
= – 4 – 3 – 2
= -7 – 2
= -9.

Question 7.
$$\frac{3}{5}$$ of is 12
The missing digit is 20.

Explanation:
Let the missing digit be X, the equation will be $$\frac{3}{5}$$ of X = 12,
3X = 12Ã—5
X = $$\frac{12Ã—5}{3}$$
= 4Ã—5
= 20.

Question 8.
Find n.
$$\frac{1}{2}$$n = 21
n = ___
n = 42.

Explanation:
Given the equation is $$\frac{1}{2}$$n = 21
n = 21Ã—2
= 42.

Question 9.
How many grams are there in 7.5 kilograms?
_______________________
7,500 g.

Explanation:
As 1 kg is 1000 g, so 7.5 kg will be 7.5Ã—1000 = 7,500 g.

Question 10.
How many diagonals does a rectangle have?
_______________________
Two diagonals.

Explanation:
There are two diagonals that are connected to two opposite vertices.

Question 11.
Inside a bag of candy there are 16 lollipops, 12 pieces of chocolate, and 7 pieces of licorice, If you reach in the bag and grab a piece of candy, what is the probability that it will be licorice?
The probability of grabbing a piece of licorice is $$\frac{7}{37}$$.

Explanation:
Given that there is a bag of candy there are 16 lollipops, 12 pieces of chocolate, and 7 pieces of licorice. The total candies are 16+12+7 which is 37 candies. So the probability of grabbing a piece of licorice is $$\frac{7}{37}$$.

Question 12.
Mr. Wright is five times as old as his daughter, Lilly. Lilly is twice as old as her brother, Micah. If Micah is 3 years old, how old is Mr. Wright?
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