# 180 Days of Math for Fourth Grade Day 46 Answers Key

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## 180 Days of Math for Fourth Grade Answers Key Day 46

Directions Solve each problem.

Question 1.  Explanation:
The difference of 13 and 6 is 7.
13 – 6 = 7

Question 2.
0.5 of 18 is __.
0.5 percent x 18 =
(0.5:100) x 18 =
(0.5 x 18):100 =
9:100 = 0.09
Now we have: 0.5 percent of 18 = 0.09
Explanation:
0.5 of 18
says half of the 18
18 ÷ 2 = 9
0.5 of 18 is 9

Question 3.
How many groups of 6 are in the number 36?
______________
There are 6 groups in number 36.
Explanation:
6 x 6 = 36
6 group of 6 is 36.

Question 4.
48 ÷ 6 = ___ Explanation:
The first number, 48, is called the dividend.
The second number, 6 is called the divisor.
and 0 is the remainder.

Question 5.
What is the even number right before 36?
______________
34 is the even number right before 36
Explanation:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30,
32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60,
62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90,
92, 94, 96, 98 and 100.
These are the even numbers between 1 to 100.

Question 6.
Fill in the missing number.
129, 139, 149, ___, 169
129, 139, 149, 159, 169
Explanation:
159 is the missing number in the sequence.
The above pattern is the example of skip by 10’s.

Question 7.
How many full oil bottles can be poured into the bucket?
______________  Explanation:
We can pour 2 oil bottles full in to the bucket.
But, In the bucket we can fill one more liter.

Question 8.
_____ inches = 2 feet
24 inches = 2 feet
Explanation:
One feet = 12 inches
so,
2 x 12 = 24

Question 9.
A regular octagon has:
___ angles
________ sides
___ axes of symmetry
8 angles
8 sides
8 axes of symmetry
Explanation:
A regular octagon has 8 lines of symmetry.
an octagon (from the Greek ὀκτάγωνον oktágōnon, “eight angles”) is an eight-sided polygon or 8-gon.

Question 10.
What fraction must be added to $$\frac{3}{4}$$ of a pizza to make 1 whole pizza?
______________
$$\frac{1}{4}$$ of  fraction is added to $$\frac{3}{4}$$
$$\frac{4}{4}$$  – $$\frac{3}{4}$$
= $$\frac{4 – 3}{4}$$
= $$\frac{1}{4}$$