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 = ___

Answer:

38+6 = 44.

Explanation:

The addition of 38 and 6 is 44.

Question 2.

5 × 9 = ____

Answer:

5 × 9 = 45.

Explanation:

The multiplication of 5 and 9 is 45.

Question 3.

What is the quotient when 63 is divided by 9?

_______________________

Answer:

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.

_______________________

Answer:

4, 6, 8, 10.

Explanation:

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

Question 5.

Is \(\frac{2}{3}\) equal to \(\frac{6}{10}\)?

_________________________

Answer:

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

___________________

Answer:

Geometric Sequence.

Explanation:

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

Question 7.

9 × = 99

Answer:

9×11 = 99.

Explanation:

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

Question 8.

35 26 = 61

Answer:

35+26 = 61.

Explanation:

The addition of 35 and 26 we will get 61.

Question 9.

How many millimeters are in 6.5 centimeters?

_______________________

Answer:

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?

_________________________

Answer:

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.

Who baked the most cookies?

___________________

Answer:

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?

___________________

Answer:

The number of hands joined are 18.

Explanation:

Given that nine children join hands to form a circle, as 1 child have two hands. So the number of hands joined are 9×2 = 18 hands.