Examples with solutions for Addition: Worded problems

Exercise #1

There are 47 horses in total in a field. Next to the field there are three paddocks, each with a capacity for 10 horses.

How many horses will remain in the field once each of the paddocks is filled?

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Calculate the total capacity of the paddocks.
  • Step 2: Subtract the total paddock capacity from the total number of horses.

Let's proceed with each step:

Step 1: Calculate the total capacity of the paddocks.
Each paddock can hold 10 horses. There are 3 paddocks, so the total capacity is:

3×10=30 3 \times 10 = 30

Step 2: Subtract the total paddock capacity from the total number of horses.
We start with 47 horses. Placing 30 horses in the paddocks leaves:

4730=17 47 - 30 = 17

Therefore, the number of horses that will remain in the field is 17 17 .

Answer

17 17

Exercise #2

On the shelf in the supermarket warehouse, there are 64 milk cartons.

The supermarket's workers arranged took 4 boxes of 10 milk cartons each.

How many milk cartons are left on the warehouse shelf?

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Calculate the number of milk cartons removed
  • Step 2: Subtract the removed cartons from the initial total
  • Step 3: Verify the result with the answer choices

Here's how we do it:
Step 1: Calculate the total milk cartons taken away. The problem states that 4 boxes of 10 cartons each were removed:
Total Cartons Removed=4×10=40\text{Total Cartons Removed} = 4 \times 10 = 40

Step 2: Subtract the removed cartons from the initial total of 64:
Remaining Cartons=6440=24\text{Remaining Cartons} = 64 - 40 = 24

Step 3: Compare with choices, and we see that 24 is indeed one of the choices provided (Choice 2).

Therefore, the number of milk cartons left on the warehouse shelf is 24 24 .

Answer

24 24

Exercise #3

There are 73 people in a dance group.

If the dancers are divided into 10 groups of 10 dancers, then how many dancers will be left without a group?

Step-by-Step Solution

To solve this problem, we'll proceed with the following steps:

  • Step 1: Perform division to find how many groups of 10 dancers can be formed.
  • Step 2: Calculate the remainder to find how many dancers are left ungrouped.

Let's go through the steps:

Step 1: Divide 73 (total dancers) by 10 (dancers per group). We calculate:

73÷10=7 remainder 3 73 \div 10 = 7 \text{ remainder } 3

This division tells us that we can form 7 complete groups of 10 dancers each, with a remainder indicating the number of dancers left ungrouped.

Step 2: The remainder from the division is 3, indicating there are 3 dancers left without a group.

Therefore, the solution to the problem is 3\mathbf{3} dancers remain without a group.

Answer

3 3

Exercise #4

Ronnie has 35 rings and wants to put them in his jewelry box.

The box has 2 rows and each row has room for ten rings.

If he fills the jewelry box, how many rings will be left out?

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given information
  • Step 2: Calculate the total capacity of the jewelry box
  • Step 3: Determine how many rings will be left out

Now, let's work through each step:

Step 1: The problem gives us 35 rings. The jewelry box has 2 rows, and each row can hold 10 rings.

Step 2: We'll calculate the total capacity of the jewelry box:

The capacity of one row is 10 10 rings. Since there are 2 rows, the total capacity is 2×10=20 2 \times 10 = 20 rings.

Step 3: To find out how many rings will be left out after filling the box, subtract the box's total capacity from the total number of rings:

3520=15 35 - 20 = 15

Therefore, the number of rings that will be left out is 15 15 .

Answer

15 15