Compare and order amounts of money | Year 4 Mathematics PDF Download

How to compare money

• Utilize knowledge of place value to order and compare different amounts of money.
• Convert between pounds and pence when necessary for some questions.

Examples

Example 1: In this example, we are comparing amounts of money in pounds and pence.
Sol:

• To compare the three amounts, first convert pence to pounds.
  
• Convert 5215 pence to pounds by dividing by 100. Since £1 = 100p, dividing by 100 shifts each digit two places to the right. Therefore, 5215 ÷ 100 = £52.15, so 5215p is £52.15.
  
• Next, convert 5201 pence to pounds. Using the same method, 5201p ÷ 100 = £52.01.
  
• Now, compare each amount. To order them in ascending order, start by identifying the smallest number.
  
• Compare the digits starting from the leftmost. In this case, look at the tens place. Each amount has 5 tens, so move to the ones place. Each amount has 2 ones, so move to the tenths and hundredths. £52.01 has 0 tenths, making it the smallest number.
  
• The amounts in ascending order are: £52.01, £52.10, and £52.15 or 5201p, £52.10, and 5215p.

Example 2: Is 428p greater than, less than or the same as £4.82?
Sol: 

• To compare two amounts, convert both to the same unit of measure.
• In this example, convert pounds to pence by multiplying by 100.
  
• The calculation for converting £4.82 to pence is 4.82 x 100.
  
• Use a place value chart to see the result. Multiplying by 100 shifts each digit two places to the left, so 4.82 x 100 = 482.
  
• After converting to pence, compare the two numbers using place value.
• Start with the leftmost column. Both numbers have 4 hundreds, so move to the tens column.
• 428p has 2 tens, and 482p has 8 tens. Since 8 tens are greater than 2 tens, 482 is the larger number.
  
• Thus, the completed statement is 428p < £4.82.