1.1 Integers

• Simple and combined operations on integers

• perform basic operations on integers in different situations
• work out combined operations on integers in different situations
• apply integers to real-life situations
• appreciate the use of integers in real-life situations

“How do we carry out operations of integers in real-life situations?”

“How do we apply integers in daily activities?”

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1. Integers and the number line
   40 min · 1 practice tasks · quiz
   Whole numbers above and below zero, ordered by their place on the line.
2. Adding integers
   40 min · 1 practice tasks · quiz
   The sign of the number you are adding tells you which way to move along the line.
3. Subtracting integers
   40 min · 1 practice tasks · quiz
   Change the sign of the second number and add instead.
4. Multiplying and dividing integers
   40 min · 1 practice tasks · quiz
   Same signs give a positive, different signs a negative, for both operations.
5. Combined operations
   40 min · 1 practice tasks · quiz
   BODMAS sets the order; the sign rules then apply at each step.
6. Integers in daily life
   40 min · 1 practice tasks · quiz
   Temperature, altitude and money all need a zero point and a way of going below it.