Year 7 · Maths · Place value and ordering · Lesson 1
Place value and ordering
Understand the value of digits in integers and decimals, compare and order numbers, and multiply and divide by powers of 10.
23-minute video lesson
Teaching, worked examples and 20 practice questions solved step by step.
Watch free for a monthWhat your child will learn
- Find the value of a digit
- Compare integers and decimals
- Order numbers including negatives
- Multiply and divide by 10, 100 and 1000
- Read and write numbers
The method
- Use a place value chart.
- Compare from the left, column by column.
- Add zeros to decimals to compare: 0.5 = 0.50.
- × 10: digits move left. ÷ 10: digits move right.
Key words: place value, digit, decimal, order, tenths.
Worked examples
The first three practice questions from the lesson, with every step.
Question 1
What is the value of the digit 8 in 5381?
- Step 1: Use a place value chart
- Step 2: 8 tens = 80
Answer: 80
Question 2
What is the value of the digit 7 in 67,204?
- Step 1: Use a place value chart
- Step 2: 7 thousands = 7000
Answer: 7000
Question 3
What is the value of the digit 3 in 8.53?
- Step 1: Use a place value chart
- Step 2: 3 hundredths = 0.03
Answer: 0.03