1.1 Structure and Calculation

• What is the definition of place value?

  Value based on position
• The rightmost digit in a number represents the units
• The thousands position is the fourth from the right.


  True
• Multiplication is repeated addition
• The order of operations ensures consistency in calculations.


  True
• What is the value of (4 + 6)?

  10
• What is the final result of (4 + 6) ÷ 2 x 3?

  15
• Multiplication is repeated addition
• What are the four main mathematical operations?

  Addition, subtraction, multiplication, division
• Subtraction involves finding the difference between two numbers.


  True
• The order of operations is often remembered by the mnemonics BODMAS or PEMDAS to ensure consistency
• The first step in BODMAS is to solve expressions inside brackets or parentheses.

  True
• According to BODMAS, division and multiplication should be performed from left to right
• Solve the expression (4 + 6) ÷ 2 x 3 using the order of operations.

  1️⃣ (4 + 6) = 10

  2️⃣ 10 ÷ 2 = 5

  3️⃣ 5 x 3 = 15
• The final result of (4 + 6) ÷ 2 x 3 is 15.


  True
• Match the mathematical operation with its example:

  Addition ↔️ 34 + 12.5

  Subtraction ↔️ 56.7 - 21

  Multiplication ↔️ 8.5 x 3

  Division ↔️ 45 ÷ 2.5
• When multiplying decimals, multiply as with whole numbers and then place the decimal point
• What is the first step in adding decimals?

  Align by decimal points
• The decimal point must be included in the final answer of decimal addition.


  True
• What is the first step in adding numbers with decimals?

  Align the numbers
• How do you determine where to place the decimal point in the product when multiplying decimals?

  Total decimal places
• When multiplying decimals, the decimal point is placed based on the total number of decimal places
• What is the purpose of estimation?

  Approximating a value
• The place value system assigns value to a digit based on its position
• Arrange the order of operations according to BODMAS/PEMDAS:

  1️⃣ Brackets (Parentheses)

  2️⃣ Orders (Exponents)

  3️⃣ Division and Multiplication

  4️⃣ Addition and Subtraction
• Addition is combining two or more numbers to find the total
• What is the correct order of operations according to BODMAS/PEMDAS?

  1️⃣ Brackets / Parentheses

  2️⃣ Orders / Exponents

  3️⃣ Division and Multiplication

  4️⃣ Addition and Subtraction
• What is the result of (3 + 2) x 4 according to the order of operations?

  20
• The sum of 34.5 and 12.75 is 47.25
• The quotient of 45 divided by 2.5 is 18.


  True
• What is the result of 34.0 + 12.5 when adding decimals?

  46.5
• Order the steps of estimation methods:

  1️⃣ Rounding

  2️⃣ Front-end estimation

  3️⃣ Clustering
• What is 3.7 rounded to the nearest whole number?

  4
• Front-end estimation involves focusing on the leading digits to get a rough estimate.


  True
• Clustering is used to group numbers together to estimate the total
• Place value provides a framework for reading and writing numbers.


  True
• What is the value of the digit in the tens position?

  10
• What is the result of 5 + 3?

  8
• What is the result of 10 - 4?

  6
• What is the quotient of 15 ÷ 3?

  5