# 180 Days of Math for Sixth Grade Day 9 Answers Key

By accessing our 180 Days of Math for Sixth Grade Answers Key Day 9 regularly, students can get better problem-solving skills.

## 180 Days of Math for Sixth Grade Answers Key Day 9

Directions Solve each problem.

Question 1.
38 + 6 = ___
38+6 = 44.

Explanation:
The addition of 38 and 6 is 44.

Question 2.
5 × 9 = ____
5 × 9 = 45.

Explanation:
The multiplication of 5 and 9 is 45.

Question 3.
What is the quotient when 63 is divided by 9?
_______________________
63÷9 = 7.

Explanation:
The quotient when 63 is divided by 9 is 63÷9 = 7.

Question 4.
List the first four multiples of 2.
_______________________
4, 6, 8, 10.

Explanation:
The first four multiples of 2 is 4, 6, 8, 10.

Question 5.
Is $$\frac{2}{3}$$ equal to $$\frac{6}{10}$$?
_________________________
Not equal.

Explanation:
$$\frac{2}{3}$$ is not equal $$\frac{6}{10}$$ as $$\frac{2}{3}$$ is 0.67 and $$\frac{6}{10}$$ is 0.6. So $$\frac{2}{3}$$ is greater than $$\frac{6}{10}$$

Question 6.
Write the rule for this pattern.
5, 20, 80, 320
___________________
Geometric Sequence.

Explanation:
The rule for this pattern is a geometric sequence as there is common ratio in each term.

Question 7.
9 × = 99
9×11 = 99.

Explanation:
By multiplying 9 and 11 which is 9×11 we will get 99.

Question 8.
35 26 = 61
35+26 = 61.

Explanation:
The addition of 35 and 26 we will get 61.

Question 9.
How many millimeters are in 6.5 centimeters?
_______________________
65 mm.

Explanation:
As 1 centimeter is 0.1 millimeter, so
6.5 cm = $$\frac{6.5}{0.1}$$
= 65 mm.

Question 10.
What is the diameter of a circle with a 4.2 cm radius?
_________________________
The diameter of a circle is 8.4 cm.

Explanation:
The diameter of a circle is 2 × raidus which is
= 2 × 4.2
= 8.4 cm.

Question 11.

___________________
Lucas baked more number of cookies.

Explanation:
We can in the above image that Molly baked 5 dozen cookies, Jake baked 3 dozen cookies, Lucas baked 7 dozen cookies and Mindy baked 5 dozen cookies. So Lucas bakedthe most number of cookies.

Question 12.
Nine children join hands to form a circle. How many hands are joined?
___________________