Year 5 Maths Workbook 4 | Part 2 | Ages 9-10|

Year 5 Maths Workbook 4 | Part 2 | Ages 9-10| by Merit Tutors
Mastering Decimals, Percentages, and Financial Math: A Comprehensive Guide
This section of the book dives deep into the practical applications of **decimals, **percentages, and financial word problems, ideal for students aiming to strengthen their understanding of real-world math.

Decimals: Addition, Subtraction, Multiplication, and Division
Working with decimal numbers is essential for many day-to-day activities like budgeting, measuring, and analyzing data. Whether adding lengths in centimeters or subtracting grams of ingredients, decimals are integral.
Examples:
• Addition: 4.2+5.3=9.54.2 + 5.3 = 9.54.2+5.3=9.5
• Subtraction: 5.55−3.13=2.425.55 - 3.13 = 2.425.55−3.13=2.42
• Multiplication: 0.29×10=2.90.29 \times 10 = 2.90.29×10=2.9
• Division: 2.1÷10=0.212.1 \div 10 = 0.212.1÷10=0.21
These exercises are excellent for understanding basic operations with decimals, helping learners get comfortable with decimal addition, decimal subtraction, and more complex operations like multiplication and division.

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Word Problems Using Percentages
Word problems involving percentages are an essential part of understanding everyday situations, from calculating discounts to determining profit margins.
Examples:

• What is 50% of 200? 50100×200=100\frac{50}{100} \times 200 = 10010050×200=100
• What is 75% of 2 Kg? 0.75×2=1.5Kg0.75 \times 2 = 1.5 Kg0.75×2=1.5Kg
  These problems are great for honing critical thinking and applying math concepts to real-life scenarios, such as understanding election results, school projects, and business profits.

Financial Math and Profit Calculations
This section introduces practical financial math problems, including how to calculate profits, expenses, and savings. These exercises are vital for understanding business operations, personal budgeting, and saving plans.
Examples:

• A carpenter charged £1,450 for a swing set and spent £799.95 on supplies. How much profit did the carpenter make? £1,450−£799.95=£650.05£1,450 - £799.95 = £650.05£1,450−£799.95=£650.05
• If a farmer sold £560 worth of pumpkins and had £118.90 in expenses, how much profit did they make? £560−£118.90=£441.10£560 - £118.90 = £441.10£560−£118.90=£441.10
  By learning to calculate profits, students will be better equipped to manage their own finances and understand basic business math.