By accessing our **180 Days of Math for Sixth Grade Answers Key Day 5** regularly, students can get better problem-solving skills.

## 180 Days of Math for Sixth Grade Answers Key Day 5

**Directions Solve each problem.**

Question 1.

_________

Answer:

20+12 = 32.

Explanation:

The addition of 20 and 12 is 20+12 = 32.

Question 2.

9 × 9 = _____

Answer:

9 × 9 = 81.

Explanation:

The multiplication of 9 by 9 is 9 × 9 = 81.

Question 3.

Answer:

35÷5 = 7.

Explanation:

By dividing 35 by 5 we will get 35÷5 = 7.

Question 4.

What is the numeral for fifteen?

_______________________

Answer:

XV.

Explanation:

The numeral of fifteen is XV.

Question 5.

\(\frac{1}{8}\) of 32 is ____

Answer:

4.

Explanation:

Given that \(\frac{1}{8}\) of 32 which is

= \(\frac{1}{8}\) × 32

= 4.

Question 6.

Find the missing number.

3,296; 3,286; ____; 3,266

Answer:

3,296; 3,286; 3,276; 3,266.

Explanation:

Here, the pattern follows countback off 10. So the missing digit 3,286-10 = 3,276. So the pattern is 3,296; 3,286; 3,276; 3,266.

Question 7.

140 ÷ = 10

Answer:

The missing digit is 14.

Explanation:

Let the missing digit be X, So 140÷X = 10

X = \(\frac{140}{10}\)

= 14.

Question 8.

Solve for x when x + 9 = 49. x = ______

Answer:

X = 40.

Explanation:

Given the expression is x + 9 = 49

X = 49 – 9

= 40.

Question 9.

Calculate the area of a square with 7 cm sides.

_________________

Answer:

14 cm sq.

Explanation:

The area of the square is 7×7

= 14 cm sq.

Question 10.

Use a protractor to measure the angle. Then identify it as either acute, reflex, obtuse, or straight.

Answer:

Size | 120 degree |

Name | Obtuse |

Question 11.

What is the mean of this set of data?

45, 31, 26,46

Answer:

The mean of the data set is 37.

Explanation:

The mean for this data set is \(\frac{45+31+26+46}{4}\)

= \(\frac{148}{4}\)

= 37.

Question 12.

A snail is climbing a brick wall that is 15 m high. It climbs up 3 m every day but slides down 1 m every night. How many days will it take to reach the top of the wall?

_______________________

Answer:

The number of days it will take is 7.5 days.

Explanation:

Given that a snail is climbing a brick wall that is 15 m high and it climbs up 3 m every day but slides down 1 m every night which means it was climbing 2m every day. So the number of days it will take is 15÷2 = 7.5 days.