Decimal Word Problem Game

Decimal Word Problem Quiz/Game (Add, Subtract)
A 2-step decimal word problem requires you to perform two distinct mathematical operations (like multiplication then subtraction) to find the final answer.
This game focuses on decimal word problems that can be solved in two steps.
Scroll down the page for a more detailed explanation.
 

 

 

How to Play the Decimal Dash Game (Add, Subtract)

1. Look at the Problem: Read the problem carefully, solve it and select one of the answers.
   
2. Check Your Work: If you selected the right answer, it will be highlighted in green. If you are wrong, it will be highlighted in red and the correct answer will be highlighted in green.
   
3. Get a New Problem: Click “Next Question” for a new problem.
   Your score is tracked, showing how many you’ve gotten right.
   
4. Finish Game When you have completed 10 questions, your final score will be displayed.
    
   

Understanding Decimal Word Problems
A 2-step decimal word problem usually asks you to combine parts and then find a difference (or vice versa). To solve these, you need to identify the “hidden” question that must be answered before you can find the final result.
 
The Logic Flow: Add then Subtract
The most common version of this problem follows a “Shopping Trip” logic:
Step 1 (Addition): Find the total of what was spent or collected.
Step 2 (Subtraction): Take that total away from a starting amount.


Example Problem
“Liam had a $1.5$ meter long wooden board. He cut off a piece that was 0.45 meters long and another piece that was 0.32 meters long. How much of the board is left?"
Step 1: Find the “Sub-Total” (Addition)
Before we can know how much is left, we have to know the total amount removed.
The Calculation:
$$0.45\text{ m} + 0.32\text{ m} = 0.77\text{ m}$$
Why? We are grouping the two smaller pieces together to see the “total loss."
Pro Tip: Always align the decimal points vertically when adding!

Step 2: Find the Remainder (Subtraction)
Now we take the original length and subtract the total we found in Step 1.
The Calculation:
$$1.50\text{ m} - 0.77\text{ m} = 0.73\text{ m}$$
Note: We add a “placeholder zero” to $1.5$ to make it $1.50$ so it’s easier to subtract $0.77$.

 
This video gives a clear, step-by-step approach to explain how to solve 2-step Decimal word problems using addition and subtraction.

• Show Video

 

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