Q1: The table shows the number of people visiting an art museum over 3 months.
Which month had the highest number of visitors if total visitor in 3 months are 405?
For January:
Total visitors = 28 (children) + 59 (adults) + 15 (seniors) = 102
For February:
Total visitors = 34 (children) + 22 (adults) + 83 (seniors) = 139
For March:
Total visitors = 56 (children) + 55 (adults) + ? (seniors)
Given that the total number of visitors over the three months is 405, we can find the number of senior visitors in March:
Total visitors for January, February, and March = 102 + 139 + (56 + 55 + ?) = 405
Solving for the missing number of senior visitors in March:
56 + 55 + ? = 405  (102 + 139)
? = 405  102  139  56  55
? = 405  352
? = 53
March: 56 (children) + 55 (adults) + 53 (seniors) = 164 visitors
Therefore, March had the highest number of visitors with a total of 164.
Q2: There are 167 books in one classroom and 392 books in the other. How many books are there altogether in both classrooms?
To find the total number of books in both classrooms, you simply need to add the number of books in each classroom together:
Total number of books = Number of books in first classroom + Number of books in second classroom
Total number of books = 167 + 392
Total number of books = 559
So, there are 559 books altogether in both classrooms
Q3: Jay has a collection of 263 football cards. His brother has 189. How many more football cards does Jay have?
To find out how many more football cards Jay has compared to his brother, we can subtract the number of football cards his brother has from the number Jay has:
Jay's football cards  Brother's football cards = Difference
263  189 = 74
So, Jay has 74 more football cards than his brother.
Q4: The library is being relocated. The librarians are busy organizing the books.
Three boxes filled with fiction books and two boxes filled with reference books were just delivered. If each box is filled with 120 books, how many fiction books are there?
To find out how many fiction books there are, we first need to determine the total number of books delivered.
Three boxes filled with fiction books means there are 3 * 120 = 360 fiction books.
Two boxes filled with reference books means there are 2 * 120 = 240 reference books.
Since the question asks for the number of fiction books, the answer is 360.
Q5: There were 445 nonfiction books but 83 went missing and 45 were transferred to another library. How many nonfiction books are left?
To find out how many nonfiction books are left after some were lost and some were transferred, we need to subtract the lost and transferred books from the initial number of nonfiction books.
Initial number of nonfiction books = 445
Lost books = 83
Transferred books = 45
Nonfiction books left = Initial number  Lost books  Transferred books
Nonfiction books left = 445  83  45
Nonfiction books left = 445  128
Nonfiction books left = 317
Therefore, there are 317 nonfiction books left.
Q6: There are 2,475 books in total in the library. 592 books are on loan and 137 books are missing. Out of the 592 books, 74 books are late. How many books are there in the library?
To find the total number of books in the library, we need to subtract the number of books on loan and the number of missing books from the total number of books.
Total books in the library = Total  (Books on loan + Missing books)
= 2475  (592 + 137)
= 2475  729
= 1746 books
So, there are 1746 books in the library.
Q7: It was the Crazy Sales Week at the department store. Any item that is $2,000 or more will get an instant discount of $200. People buying two pieces of clothing items gets $15 off the second item.
Josh wants to buy a TV that costs $2,380 and a printer that costs $259. How much does he need to pay?
First, let's calculate the total cost of the items before any discounts:
Cost of TV = $2,380
Cost of printer = $259
Total cost before discounts = $2,380 + $259
Total cost before discounts = $2,639
Now, let's apply the discount policy:
Since the TV costs $2,380, which is $2,000 or more, it qualifies for an instant discount of $200.
So, the new cost of the TV after the discount = $2,380  $200 = $2,180
Since there's no discount applicable to the printer, its cost remains the same.
Now, let's calculate the final cost:
New cost of TV = $2,180
Cost of printer = $259
Total cost after discounts = $2,180 + $259
Total cost after discounts = $2,439
Therefore, Josh needs to pay $2,439 in total.
Q8: It was the Crazy Sales Week at the department store. Any item that is $2,000 or more will get an instant discount of $200. People buying two pieces of clothing items gets $15 off the second item.
Sean wants to buy a laptop computer that costs $2,099, a shirt that costs $22 and a jacket that costs $136. How much does he need to pay?
First, let's calculate the total cost of the items before any discounts:
Cost of laptop computer = $2,099
Cost of shirt = $22
Cost of jacket = $136
Total cost before discounts = $2,099 + $22 + $136
Total cost before discounts = $2,257
Now, let's apply the discounts:
Since the laptop computer costs $2,099, which is $2,000 or more, it qualifies for an instant discount of $200.
So, the new cost of the laptop computer after the discount = $2,099  $200 = $1,899
Now, since Sean is buying two pieces of clothing items (shirt and jacket), he qualifies for the discount of $15 off the second item.
Therefore, Sean will receive a $15 discount on the jacket.
Now, let's calculate the final cost:
New cost of laptop computer = $1,899
Cost of shirt = $22
Cost of jacket after $15 discount = $136  $15 = $121
Total cost after discounts = $1,899 + $22 + $121
Total cost after discounts = $2,042
Therefore, Sean needs to pay $2,042 in total.
Q9: It was the Crazy Sales Week at the department store. Any item that is $2,000 or more will get an instant discount of $200. People buying two pieces of clothing items gets $15 off the second item.
On Monday, 126 laptops computer were sold. On Tuesday, 68 laptop computers were sold. On Wednesday, 283 laptop computers were sold. How many computers were sold in the three days?
To calculate the total number of laptops sold over the three days, we'll simply add up the laptops sold on each day.
On Monday: 126 laptops sold
On Tuesday: 68 laptops sold
On Wednesday: 283 laptops sold
Total laptops sold = 126 + 68 + 283
Total laptops sold = 477
Therefore, a total of 477 laptops were sold over the three days.
Q10: Denver is musically talented, and he is earning money from his music.
The latest album of a famous acoustic band sold 243 copies last week and another 482 copies this week. If there were 965 copies released, how many copies of the album remain to be sold?
To find out how many copies of the album remain to be sold, we can subtract the total number of copies sold from the total number released.
Total copies sold = 243 (last week) + 482 (this week) = 725
Remaining copies = Total copies released  Total copies sold
Remaining copies = 965  725
Remaining copies = 240
Therefore, there are 240 copies of the album that remain to be sold.
28 videos110 docs30 tests

1. How do you add two numbers together? 
2. How do you subtract one number from another? 
3. What is the order of operations when performing addition and subtraction? 
4. Can you add or subtract numbers with different signs? 
5. How can I practice addition and subtraction to improve my skills? 

Explore Courses for Class 4 exam
