# 180 Days of Math for Sixth Grade Day 124 Answers Key

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## 180 Days of Math for Sixth Grade Answers Key Day 124

Directions: Solve each problem.

Question 1.

Explanation:
Subtracting smallest number from the biggest number,
to get the difference.

Question 2.
4 × 40 = _________
Explanation:
Multiply means to add equal groups.
When we multiply, the number of things in the group increases.
The two factors and the product  are parts of a multiplication.
So, 4 × 40 = 1600
The numbers 4 and 40 are the factors,
1600 is the product.

Question 3.

Quotient = 13
Remainder = 4
Explanation:

Question 4.
How do you know that 9 is a square number?
3 x 3 = 9
Explanation:
Square numbers refer to the product of multiplying any integer by itself.
3 x 3 = 9

Question 5.
$$\frac{3}{5}$$ – $$\frac{2}{10}$$ = ___________
$$\frac{2}{5}$$
Explanation:
$$\frac{3}{5}$$ – $$\frac{2}{10}$$
= $$\frac{(3×2) – (2×1)}{10}$$
= $$\frac{(6-2)}{10}$$
= $$\frac{4}{10}$$
= $$\frac{2}{5}$$
Question 6.
305 ÷ 5 = 60 +
Explanation:
305 ÷ 5 = 60 +
305 ÷ 5 = 60 + x
61 = 60 + x
61 – 60 = x
x = 1

Question 7.
2 = 25
Explanation:
2 = 25
5 x 5 = 25

Question 8.
7 × = 30 – 9
Explanation:
7 × = 30 – 9
7 × X = 30 – 9
7x = 21
x = 21 ÷  7
x = 3

Question 9.
Calculate the average hourly speed when 180 miles are traveled in 4 hours.
45 miles per hour
Explanation:
= $$\frac{180}{4}$$
=45 miles per hour

Question 10.
Complete the chart for the shape.

 Name the figure How many sides? How many angles? Does it have symmetry? Is it a plane shape or a solid shape?

Name the figure  : decagon
How many sides  : 10
How many angles : 10
Does it have symmetry : Yes
Is it a plane shape or a solid shape : Plane
Explanation:
A Decagon can be defined as a regular polygon with ten sides,
ten interior angles and ten vertices.

Question 11.
Time Spent on Homework

 Day Minutes Monday 52 Tuesday 45 Wednesday 30 Thursday 45 Friday 0

One-half of the time on Wednesday was spent reading. How many minutes were spent reading on Wednesday?
15 minutes
Explanation:
One-half of the time on Wednesday was spent reading.
Total time spent on reading = 30 minutes.
Total minutes spent on reading = $$\frac{30}{2}$$ = 15min

Question 12.
William has a binder with 32 pages in it. Each page holds 4 baseball cards. If the book is $$\frac{3}{4}$$ full, how many baseball cards are in the binder?
If the book is $$\frac{3}{4}$$ full,
= 32 – $$\frac{3}{4}$$
= $$\frac{32 × 4}{4}$$ – $$\frac{3}{4}$$
= $$\frac{125}{4}$$