By accessing our 180 Days of Math for Sixth Grade Answers Key Day 105 regularly, students can get better problem-solving skills.
180 Days of Math for Sixth Grade Answers Key Day 105
Directions: Solve each problem.
Question 1.
-8 – (-20) = __________
Answer:
– × – = +
-8 + 20 = 12
Question 2.
5 × 18 = ____________
Answer:
5 × 18 = 90
Question 3.
360 ÷ 6 = __________
Answer: 360 ÷ 6 = 60
Question 4.
Write the ordinal number for thirty-nine.
Answer: 39
Question 5.
\(\frac{1}{2}\) + \(\frac{2}{6}\) = __________
Answer:
Given,
\(\frac{1}{2}\) + \(\frac{2}{6}\)
The denominators of both the numbers are different.
LCM of 2 and 6 is 6.
\(\frac{1}{2}\) × \(\frac{3}{3}\) + \(\frac{2}{6}\)
\(\frac{3}{6}\) + \(\frac{2}{6}\) = \(\frac{5}{6}\)
Question 6.
8 – (7 + 6 – 5) + 4 = ___________
Answer:
8 – (7 + 6 – 5) + 4
8 – (13 – 5) + 4
8 – 8 + 4 = 4
Question 7.
323 – 
= 125 + 176
Answer:
125 + 176 = 301
323 – 301 = 22
So, the unknwon number is 22.
Question 8.
Find y.
15y = 60
y = __________
Answer:
Given,
15y = 60
y = 60/15
y = 4
Question 9.
18 inches = __________ yards
Answer:
Convert from inches to yards
1 inch = 0.02 yards
18 inches = 18 × 0.02 = 0.5 yards
Thus, 180 inches = 0.5 yards
Question 10.
How many degrees are in a right angle?
Answer: A right angle is 90 degrees.
Question 11.
What is the median of this set of data?
105, 90, 82, 99, 93
Answer:
First, we have to arrange the given data in ascending order.
82, 90, 93, 99, 105
The median is 93.
Question 12.
If this pattern is continued until there are 50 rhombuses, how many matches will form the perimeter of the whole pattern?
Answer: 151