1.1 Structure and Calculation

• The place value of a digit is determined by its position in the number.


  True
• The number 2345 can be expressed as 2000 + 300 + 40 + 5.


  True
• What is the result of 7 + 5?

  12
• What is 4 multiplied by 6?

  24
• In the expression 6 ÷ 2, the division operation results in 3
• The number 2345 can be expressed as 2000 + 300 + 40 + 5
• What is the result of 4 × 6?

  24
• What is the first operation to perform in BODMAS/PEMDAS?

  Brackets
• Negative numbers are less than zero.

  True
• In the decimal system, each position represents a power of 10
• The Thousands place represents the power of 10 that is 3
• Match the place value with its power of 10:

  Ones ↔️ 10⁰

  Tens ↔️ 10¹

  Hundreds ↔️ 10²

  Thousands ↔️ 10³

  Ten Thousands ↔️ 10⁴
• Subtraction finds the difference between two numbers.


  True
• Arrange the order of operations according to BODMAS/PEMDAS:

  1️⃣ Brackets (or Parentheses)

  2️⃣ Orders (Exponents, Powers, Roots)

  3️⃣ Division and Multiplication (from left to right)

  4️⃣ Addition and Subtraction (from left to right)
• In the decimal system, each position represents a power of 10
• Steps to add two numbers:

  1️⃣ Add the ones

  2️⃣ Combine the digits
• Division splits a number into equal parts
• To evaluate the expression 2 + 3 × 4 - 6 ÷ 2, the first step is to perform the division
• What is an example of an integer?

  7
• What sign is always used with negative numbers?

  Minus (-)
• Estimation saves time in verifying calculations.

  True
• Steps to use estimation:

  1️⃣ Round the numbers

  2️⃣ Perform the approximate calculation

  3️⃣ Compare the estimated result with the precise answer
• What is the value of a digit in the Ones place?

  1
• What is the place value of the digit 2 in the number 2345?

  Thousands
• Addition involves combining two or more numbers to find their total
• The result of 15 - 8 is 7
• Following the correct order of operations is crucial for accurate calculations.


  True
• The Ones place in the decimal system corresponds to 10⁰.


  True
• Subtraction finds the difference between two numbers.


  True
• Common mistakes in arithmetic include misreading numbers or confusing operations.


  True
• Following the correct order of operations is crucial to get the right result.


  True
• Decimal numbers include fractional parts after the decimal point
• Estimation involves rounding numbers to simplify calculations