Decimals
Build and connect the representations and methods in decimals.
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Before you begin
Build and connect the representations and methods in decimals.
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
Lessons
Work through them in order.
About lesson progress
Lesson marks record what you have studied. Checks show understanding separately. Guest marks come from this device.
- Decimal place value and roundingRepresent tenths, hundredths and thousandths, compare equal units and round only when requested.
- Add and subtract decimalsAlign equal place values and exchange units when adding and subtracting decimals.
- Calculate with decimalsAlign equal units, interpret products and quotients and round the final answer to the requested accuracy.