## One and Two Step Addition and Subtraction Word Problems

#### Aligned To Common Core Standard:

**Grade 2 Operations** - 2.OA.1

How to Approach Two-Step Addition and Subtraction Word Problems- Word problems often seem difficult to solve, especially the ones that involve multiple steps. Take one example; for instance: Jack has 28 lollipops. Jill has 12 fewer. How much do they have altogether? One way to think about this problem is to visualize and then draw. The common mistake that most students make is when they do not use these two methods at each step. Another way to approach this method is first to read the question multiple times. It is a highly effective way of getting a better understanding of the problem. In this question, there are two important statements, one dictates the number of lollipops Jack has, and the others tell us how many lollipops Jill has compared to Jack. The second step in this approach is identifying who is involved in the process. We understand that in the question, there are two parties involved Jack and Jill. It can help arrange data based on their individual variables, such as: Jack: 28 lollipops | Jill: 28 – 12 lollipops (Fewer means subtract). The third and last step is the same as the previous approach, i.e., to draw the problem. These worksheets add an extra dimension to students when working with word problems.

### Printable Worksheets And Lessons

- Add and Subtract
within 100 Word Problem Step-by-step Lesson- You start off with
a 2-part word problems were you are looking for a missing addend
in word form.

- Guided Lesson
- Fun word problem scenarios that included soccer balls, candy,
and students on a bus.

- Guided Lesson
Explanation - The explanation is plotted out for you visually
to make sure students can transition well into the skills. For subtraction we will cross out values. For addition it is helpful to write values in rows and columns.

- 5 Pack of Practice
Sheets - Practice match the pictures to the operations that
are noted on the sheet.

- Practice Worksheet
- 10 practice word problems with plenty of space to work them out
with.

- Matching Problems to Answers Worksheet - Match the word problems to their answers. A unique way to look at it.

#### Homework Sheets

You will find some wordy questions here that make for some excellent practice.

- Homework 1 - David has 12 pieces of candy. He gave away 4 pieces of the candy. How much candy does he have now?
- Homework 2 - Joe wants to collect 75 autographed baseball pictures. He has 32 so far. How many more does he need?
- Homework 3 - Mrs. Ross has 34 children in her class. There are 6 children absent today. How many are in the class?

#### Practice Worksheets

Remind students to take their time with these. There may be a few twists, if you misread anything.

- Practice 1 - Mike wants to collect 100 baseball cards. He has 78 already. How many more does he need?
- Practice 2 -Chris has to set up 85 chairs for the meeting. She has set up 64 so far. How many more chairs does she have to set up?
- Practice 3 - Dean practiced for the spelling bee. He practiced 42 words the first day and 36 words the second. How many words did he practice?

#### Math Skill Quizzes

We followed the two sentence format that we have seen on countless core assessments.

- Quiz 1 - Mary practiced her dance in dance class 5 times. She also practiced her dance 8 times at home. How many times did she practice the dance?
- Quiz 2 - The children went to the zoo to see the animals. They saw 6 monkeys and 11 zebras. How many animals did they see?
- Quiz 3 - Megan made 36 cookies. She gave 16 of them away. How many are left?

### How Do You Decide What Math Operations Are Required to Complete a Word Problem?

For this series of worksheets and lesson we focus our attention on addition and subtraction, so we will center our discussion on those two operations.When you are reading a word problem your goal should be to break down the words or phrases used to indicate what is operationally taking place.There are many different words that can be used to determine this.When a problem is leading you to find the value of a sum it will often have one of the following words or phrases: add, all, altogether, both, total, increase, and whole.When you see any of those words or phrases, you can rest assured that you will be adding two or more numbers together.There are also a series of words and phrases that signify that you will be looking for a difference between two or more values. Those words and phrases include: change, decrease, fewer, give away, take away, how many less/more, how much longer/shorter, less, and remain. If you get in the habit of dissecting these word problems finding the solution will be easier for to find addition and subtraction operations quickly. This will help you master this skill.It does require you to put in the work with dozens of problems to get to that level.

### One Step Addition Word Problem Example

#### Problem

Bob collects plastic bottles to recycle. He went to the local town park and found 16 plastic bottles. His friend Jason gave him 12 bottles that he found as well. How many plastic bottles does Bob have in total?

#### Solution

When solving word problems, we always look for keywords to tell us which operations we should use to solve it. In this case, the terms **"in total"** are the words we are looking for. This means we are going to use addition to find the sum. We know Bob has 16 bottles and then receives another 12 bottles. The sum would be 16 bottles + 12 bottles = 28 bottles. So, Bob has a total of 28 bottles.

### One Step Subtraction Word Problem Example

#### Problem

Candice has an aquarium and needs to clean the tank. When she cleans the tank, she must take all the fish out and put them in a fishbowl. She has 27 fish. If 15 fish are already in the fishbowl, how many more fish does she need to remove from her aquarium before cleaning it?

#### Solution

The words **"how many more"** indicates that we need to find a difference (subtract). In this case, we are looking for the difference in the total number of fish and the fish already in the bowl. She has 27 fish and 15 were removed and placed in the fishbowl. So, the remaining fish would be equal to: 27 - 15 = 12. She needs to remove 12 more fish.

### Two Step Combined Operations (Addition and Subtraction) Word Problem Example

#### Problem

Billy and Ava are responsible for picking up all the tennis balls left on the tennis courts. There were 18 tennis balls on the first court and 36 tennis balls on the second court. Ava was able to collect 25 tennis balls and left the rest for Billy to collect. How many balls are left for Billy to collect?

#### Solution

This problem has several aspects. We first need to determine the total number of tennis balls on the court. This would be the total number of balls on the first (18) and second (36) courts. The total number of tennis balls would equal 18 + 36 = 54. We now know that there is a total of 54 tennis balls. We need to determine how many are left for Billy. If there were 54 tennis balls and Ava collected 25, the remaining number of balls for Billy would be equal to: 54 - 25 = 29 balls. So, the remaining number of balls for Billy to collect is 29.