# 180 Days of Math for Fifth Grade Day 45 Answers Key

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## 180 Days of Math for Fifth Grade Answers Key Day 45

Directions Solve each problem.

Question 1.
Calculate the sum of 39 and 43.
_____________________
Explanation:
we get the sum.
39 + 43 = 82

Question 2.
7 × 20 = _____
Explanation:
Multiply the numbers 7 and 20 to get the product.
7 x 20 = 140

Question 3. Explanation: Question 4.
8,000 + 600 + 7 = ___
8,607
Explanation:
Arrange the given numbers according to their place value, Question 5.
Write 0.36 as a percentage.
_____________________
36%
Explanation:
convert 0.36 as percentage,
multiply with 100.
0.36 x 100 = 36

Question 6.
Write the number that comes next in the sequence.
95, 85, 75, _________
Explanation:
The given sequence follows n – 10 rule
95, 85, 75,
n = given number
last number is 75
so, 75 – 10 = 65

Question 7.
30 – = 3 × 5
Explanation:
Let the unknown number be x
30 – x = 3 x 5
30x = 15
x = 30 – 15
x = 15

Question 8.
How many weeks are in 2 years?
______________
104 weeks
Explanation:
1 year = 52 weeks
2 years = 52 x 2
= 104 weeks

Question 9.
Draw all of the lines of symmetry.  Explanation:
Line Symmetry is a line that divides an object into two or more equal halves.
The above drawing has 4 line symmetries.

Question 10.
Write the coordinates of:  (E, 4)
Explanation:
(E, E)
first lets check the letters
letter = E
then check the number given
number = 4
now check the fourth intersection upwards from C Question 11.
If you flip a coin 6 times, how many times would you expect the coin to land with tails up?
______________
Tony has $3.00. What can he buy? ______________ ______________ Answer: Tony can buy Exercise Book and Note Book Explanation: Cost of Atlas book is$6
Cost of Exercise Book is $1.40 Cost of Note book is$1.50
Tony has $3.00, so he cannot buy Atlas Exercise Book is$1.40 + Note book is $1.50 =$2.90