180 Days of Math for Sixth Grade Day 54 Answers Key

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180 Days of Math for Sixth Grade Answers Key Day 54

Directions Solve each problem.

Question 1.
39 + 56 = ____
Answer:
39 + 56 = 95.

Explanation:
By adding 39 and 56 we will get the result as 39+56 = 95.

Question 2.
31 • 10 = ____
Answer:
31×10 = 310.

Explanation:
By multiplying 31 by 10 we will 31×10 = 310.

Question 3.
72 ÷ 9 = ______
Answer:
72 ÷ 9 = 8.

Explanation:
By diving 72 by 9 we will get the result of 72÷9 which is 8.

Question 4.
Is 16 a composite number?
__________
Answer:
Yes, 16 is a composite number.

Explanation:
Yes, 16 is a composite number. As 16 has more than two factors.

Question 5.
Write 1\(\frac{3}{4}\) as an improper fraction.
_____________
Answer:
\(\frac{7}{4}\).

Explanation:
Given 1\(\frac{3}{4}\) in mixed fraction, so in improper fraction it will be \(\frac{7}{4}\).

Question 6.
3 + (-2) + 4 = ___
Answer:
3 + (-2) + 4 = 5.

Explanation:
Given the expression is 3 + (-2) + 4
= 3 – 2 + 4
= 1 + 4
= 5.

Question 7.

Answer:

Question 8.
Solve for r if \(\frac{r}{2}\) = 12.
r = ___
Answer:
r = 12.

Explanation:
Given \(\frac{r}{2}\) = 12,
r = 12×2
= 24.

Question 9.
How many kilograms are in 7,000 grams?
_____________
Answer:
7,000 grams = 7 kg.

Explanation:
As 1 g = 0.001 kg, so
7,000 g = 7,000×0.001
= 7 kg.

Question 10.
Complete the chart for the shape.

Answer:

Name the figure.	Circle
How many surfaces?	1
How many vertices?	0
Does it stack or roll?	Roll
Is it a plane shape or a solid shape?	Plane shape

Question 11.
The numbers 20 through 30 were written on individual cards and placed in a bag. If you take one card from the bag, what is the probability that it will be a multiple of 10?
_______________________
Answer:
The probability of picking the multiple of 10 is \(\frac{1}{2}\).

Explanation:
Given that the numbers, 20 through 30 were written on individual cards and placed in a bag. So the probability of picking the multiple of 10 is \(\frac{1}{2}\).

Question 12.
On a bus. Mia watched 8 people get off and 4 get on at the first stop, 3 people get off and 10 get on at the second stop, and 5 people get off and 7 get on at the third stop. If there are now 25 passengers, how many people were on the bus when Mia started counting?
_______________________
Answer:
There are 33 passengers when Mia started counting.

Explanation:
Given that on a bus, Mia watched 8 people get off and 4 get on at the first stop and 3 people get off and 10 get on at the second stop, and then 5 people get off and 7 get on at the third stop. And if there are 25 passengers, then in the first stop 28 – 8 + 4 = 24 passengers. In second stop 24 – 3 + 10 = 31 passengers. In third stop 31 – 5 + 7 = 33 passengers. There are 33 passengers when Mia started counting.