By accessing our 180 Days of Math for Fifth Grade Answers Key Day 152 regularly, students can get better problem-solving skills.
180 Days of Math for Fifth Grade Answers Key Day 152
Directions: Solve each problem.
Question 1.
Answer:
Subtraction is one of the four basic arithmetic operations in mathematics. We can observe the applications of subtraction in our everyday life in different situations.  For example, when we purchase fruits and vegetables for a certain amount of money say Rs. 200 and we have been given Rs. 500 note to the vendor. Now, the vendor returns the excess amount by performing subtraction such as 500 – 200 = 300. Then, the vendor will return Rs. 300.
Now we need to calculate the above-given question:
87 = Minuend; 42 = Subtrahend; 45 = Difference
Therefore, the answer is 45.
Question 2.
41 × 76 = ____________
Answer:
In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life. The major application we can see in multiplication tables.
In arithmetic, the multiplication of two numbers represents the repeated addition of one number with respect to another. These numbers can be whole numbers, natural numbers, integers, fractions, etc. If m is multiplied by n, then it means either m is added to itself ‘n’ a number of times or vice versa.
The formula for multiplication:
The multiplication formula is given by:
Multiplier × Multiplicand = Product
– The multiplicand is the total number of objects in each group
– A multiplier is the number of equal groups
– Product is the result of multiplication of multiplier and multiplicand
Therefore, the answer is 3116.
Question 3.
Answer:
The square root of a number is defined as the value, which gives the number when it is multiplied by itself. The radical symbol √ is used to indicate the square root. For example, √9 = 3. The radical symbol is also called a root symbol or surds. If a number is a perfect square, we can easily find the square root of the number. If the given number is not a perfect square number, the square root can be found using the long division method.
Here we will show you how to calculate the square root of 224 using the long division method with one decimal place accuracy.
The answer is on top. The square root of 224 with one digit decimal accuracy is 14.966. Did you notice that the last two steps repeat the previous two steps? You can add decimals by simply adding more sets of 00 and repeating the last two steps over and over.
therefore, the square root of 224 is 14.966
The above-given question is 14 square root of 224 is:
We got a square root of 224 is 14.966
Now multiply 14 by 14.966
Thus, 14*14.966 is 209.524
Question 4.
400,000 + 60,000 + 5,000 + 300 + 80 + 1 = ____________
Answer: 465,381
Place value in Maths describes the position or place of a digit in a number. Each digit has a place in a number. When we represent the number in general form, the position of each digit will be expanded. Those positions start from a unit place or we also call it one’s position. The order of place value of digits of a number of right to left is units, tens, hundreds, thousands, ten thousand, a hundred thousand, and so on.
Question 5.
Double $2.65.
Answer:
We need to double the given number.
we need to multiply.
= 2.65 × 2.65
= 7.0225
Question 6.
90 ÷ 5 – 10 = ____________
Answer:
The value of 90 ÷ 5 is 18
Now subtract the value we got. Assume the answer is X.
X = 18 – 10
X = 8
Therefore, the value of the above-given equation is 8.
Question 7.
Answer:
Let the empty box be X
45 – X = 38
Now get 45 to the right-hand side then the equation will be:
– X = 38 – 45
– X = – 7
‘-‘ gets cancelled on both sides
Therefore, X = 7
now substitute the X value in the above equation.
45 – X = 38
45- 7 = 38
38 = 38
LHS = RHS
Hence, the answer is verified.
Question 8.
58 mm = ___________ cm
Answer:
1 millimeter is equal to 0.1 centimeters:
1 mm = 0.1 cm
The distance d in centimetres (cm) is equal to the distance d in millimetres (mm) times 0.1, that conversion formula:
d(cm) = d(mm) × 0.1
d(cm) = 58 mm × 0.1
d(cm) = 5.8 cm
Therefore, 58 mm is equal to 5.8 cms.
Question 9.
How many vertices are on a rectangular pyramid?
Answer: 5 vertices
– Pyramids are three-dimensional structures having triangle faces and have an encompassing polygon shape at their base. If the base of a pyramid is rectangular, then it is called a rectangular pyramid.
– There is a total of five vertices of a rectangular pyramid. These vertices are the point where the edges meet or intersect. One of the vertices is at the top above the base, where the triangular faces of the pyramid meet. Rest four vertices lie at the corner of the rectangular base.
Question 10.
Books Read
It took Eric 6 months to read his books. If he read an equal amount of books each month, how many books did he read each month?
Answer:
The number of books Eric read = 3 * 10 = 30
The number of books he read each month = X
X = 30/6
X = 5
Therefore, he reads 5 books each month.
Question 11.
If the probability that someone knows how to swim is \(\frac{2}{3}\), how many people in a group of 100 will likely know how to swim?
Answer:
P(S)=2/3=0.66
The probability of knowing how to swim is 0.66 that is nothing but 66%
The number of people is there in a group is 100
We know the probability of swimming. Now we need to find out the number and will likely know how to swim. Assume it as X
Now subtract the total group percentage and the probability we know how to swim
X=100-66
X=34
therefore, 34 people know how to swim.
Question 12.
Marcia gets $5.00 per week for allowance. She spends half of the money. She saves one-fourth of the money and she gives the rest to charity. How much does she give to charity each week?
Answer:
The amount Marica gets per week for allowance = $5
Half of the money she spends = 5/2= 2.5
For $2.5 she saves 1/4th of the money = 1/4 * 2.5 = $0.625
The rest of the amount she gives to charity=X
X = 2.5 – 0.625
X = $1.875
Therefore, she gives $1.875 for charity.