Conversion Grid Practice
Conversion grid questions test whether you can move confidently between fractions, decimals, and percentages. The layout is simple, but accuracy depends on using the right conversion in the right direction.
The Rules Every Conversion Grid Question Uses
Each row is one number written three ways. Use the given cell as your anchor, then fill the missing fraction, decimal, or percentage in the same row.
🔁 Rule 1: One row, one value
The fraction, decimal, and percentage in a row must all represent the same amount.
Example: 0.35 = 35% = 720.
💯 Rule 2: Decimal to percentage
To change a decimal to a percentage, multiply by 100. This is the same as moving the decimal point two places right.
Example: 0.46 becomes 46%.
➗ Rule 3: Percentage to decimal
To change a percentage to a decimal, divide by 100. This is the same as moving the decimal point two places left.
Example: 18% becomes 0.18.
✂️ Rule 4: Simplify fractions
Fractions in the grid should be written in simplest form, so reduce the fraction after converting from a decimal or percentage.
Example: 35100 simplifies to 720.
How to Solve Conversion Grid Questions
Three common moves: decimal to percentage, percentage to decimal, and simplifying the fraction.
1. Start from the Decimal
Question: Row A gives the decimal 0.35. Complete the percentage and fraction.
Worked Method
Step 1: Convert 0.35 to a percentage: 0.35 × 100 = 35%.
Step 2: Write 0.35 as 35100.
Step 3: Simplify 35100 by dividing top and bottom by 5: 720.
Tip: Decimals with two places can be written over 100 first, then simplified.
2. Start from the Percentage
Question: Row B gives the percentage 46%. Complete the decimal and fraction.
Worked Method
Step 1: Convert 46% to a decimal by dividing by 100: 0.46.
Step 2: Write 46% as 46100.
Step 3: Simplify 46100 by dividing top and bottom by 2: 2350.
Tip: A percent already means "out of 100", so it is usually the fastest route to the fraction.
3. Do Not Forget to Simplify
Question: Row C gives the fraction 950. Complete the decimal and percentage.
Worked Method
Step 1: Make the denominator 100: 950 = 18100.
Step 2: 18100 as a decimal is 0.18.
Step 3: 18100 as a percentage is 18%.
The trap: The fraction in the table is already simplified. Do not change 950 to 18100 as the final fraction answer.
Before You Buy
Want to check the level and layout first? Download the free 3-question sample. It uses the same question style, printable format, and answer-key approach as the full pack.
Download Free Sample PDFGet the Full Practice Pack
The full Conversion Grid pack contains 90 questions across 3 printable worksheet sets. Students practise converting between fractions, decimals, and percentages in a consistent table format.
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