By accessing our 180 Days of Math for Sixth Grade Answers Key Day 7 regularly, students can get better problem-solving skills.
180 Days of Math for Sixth Grade Answers Key Day 7
Directions Solve each problem.
Question 1.
45 + 27 = ______
Answer:
45+27 = 72.
Explanation:
The addition of 45 and 27 is 72.
Question 2.
Answer:
6×8 = 48.
Explanation:
The multiplication of 6 and 8 is 6×8 = 48.
Question 3.
Calculate 36 divided by 6.
___________________
Answer:
36÷6 = 6.
Explanation:
The division of 36 by 6 is 36÷6 = 6.
Question 4.
List the factors of 40.
___________________
Answer:
1, 2, 4, 5, 8, 10, 20, 40.
Explanation:
The factors of 40 are 1, 2, 4, 5, 8, 10, 20, 40.
Question 5.
Write 0.61 as a fraction.
_______________
Answer:
The given decimal is 0.61, so as a fraction it will be \(\frac{61}{100}\)
Question 6.
126 ÷ 9 • 2 = ______
Answer:
126 ÷ 9 • 2 = 128.
Explanation:
Given the expression is 126 ÷ 9 • 2, by using the BODMAS rule first we will perform division, and then we will perform multiplication. So 126 ÷ 9 • 2
= 14×2
= 28.
Question 7.
Solve for n.
\(\frac{1}{4}\) • n = 4
n = ____
Answer:
n = 16.
Explanation:
Given the expression is \(\frac{1}{4}\) • n = 4
n = 4 × 4
= 16.
Question 8.
× 10 = 30
Answer:
X = 3.
Explanation:
Let the missing digit be X, so
X × 10 = 30
X = \(\frac{30}{10}\)
= 3.
Question 9.
Calculate the perimeter of the shape.
_______________
Answer:
The perimeter is 20 cm.
Explanation:
The above shape is a pentagon and the perimeter of a pentagon is 5a which is
= 5 × 4
= 20 cm.
Question 10.
How many faces are on the solid?
_______________
Answer:
Four faces.
Explanation:
The above solid is Rectangle and it has four faces.
Question 11.
Two red cubes, two green cylinders, and three yellow rectangular prisms were put in a bag. If you reach into the bag and pull out an object, what is the probability that you will pull out a green cylinder?
_____________________
Answer:
The probability of pulling out a green cylinder is \(\frac{2}{7}\).
Explanation:
Given that there are two red cubes, two green cylinders, and three yellow rectangular prisms were put in a bag. As there are a total of seven objects, the probability of pulling out a green cylinder is \(\frac{2}{7}\).
Question 12.
Shaundra is 5 years older than her brother. If the sum of their ages is 31, how old is Shaundra?
Answer:
Shaundra’s age is 18 years.
Explanation:
Given that Shaundra is 5 years older than her brother and the sum of their ages is 31. Let Shaundra’s brother’s age be X and Shaundra’s age is X+5. So the equation will be
(X) + (X+5) = 31,
2X + 5 = 31,
2X = 31 – 5,
2X = 26,
X = \(\frac{26}{2}\)
= 13.
So Shaundra’s age is 13+5 = 18.