Integers and Roman numerals — Maths worksheet

The method

Walk the number line — “adding a positive number moves right, a negative number moves left”

1. On a number line, the number further right is bigger: −3 > −8, and every negative number is smaller than 0.
2. Same signs: add the sizes and keep the sign. Different signs: subtract the smaller size from the bigger and keep the sign of the bigger size.
3. Taking away more than you have goes below 0: 5 − 12 = −7.
4. Roman numerals: add the values, but a smaller numeral before a bigger one is taken away — IV = 4, IX = 9, XL = 40, XC = 90, CD = 400, CM = 900.

Use it for: Temperatures in winter, bank balances, lifts going below the ground floor, clock faces and chapter numbers, and the integers chapter of Class 6 maths.

Worked example: What is (−12) + 5? → −7

✏️ Practice

Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.

🏁 Lesson 41 test

20 sums. Check each answer, then go to the next one. Get 16 or more right to pass.

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🖨️ Class 6 Maths Worksheet: Integers and Roman Numerals

• Worksheet set 1 (PDF)
• Worksheet set 2 (PDF)
• Worksheet set 3 (PDF)