About this topic
Before you begin
Read, compare and round decimal numbers, then use place value to explain and check decimal calculations.
Learning goals
- Identify each decimal place count
- Write a decimal from its place values
- Compare decimal values
- Order decimal values
- Express a decimal as a fraction
- Express a fraction as a decimal
- Round a decimal to the requested place
- Add decimals
- Subtract decimals
- Multiply a decimal by a one-digit whole number
- Divide a decimal by a one-digit whole number
- Divide whole numbers to obtain a decimal
- Round the final result of a decimal calculation
Syllabus statements covered
- Notation, representations and place values (tenths, hundredths, thousandths)
- Comparing and ordering decimals
- Expressing decimals as fractions
- Expressing fractions as decimals when the denominator is a factor of 10 or 100
- Rounding decimals to
- The nearest whole number
- 1 decimal place
- 2 decimal places
- Adding and subtracting decimals (up to 2 decimal places)
- Multiplying and dividing decimals (up to 2 decimal places) by a 1-digit whole number
- Dividing a whole number by a whole number with quotient as a decimal
- Rounding answers to a specified degree of accuracy
Choose a lesson
Work through them in order.
- Not startedDecimal place value and roundingNextRepresent tenths, hundredths and thousandths, compare equal units and round only when requested.
- Not startedAdd and subtract decimalsNextAlign equal place values and exchange units when adding and subtracting decimals.
- Not startedCalculate with decimalsNextAlign equal units, interpret products and quotients and round the final answer to the requested accuracy.