1. Decimal recap
[ GM4.2 Support Starter]
Using only decimals, jot down four additions whose answers are all 1.
The difference between two numbers is One of the numbers is What two values could the other number have?
Explain, with a couple of examples, how to multiply a decimal by a whole number.
Explain, with a couple of examples, how to divide a decimal by a whole number.
Preamble
These four activities are suitable for small groups and provide ample opportunity for display work – particularly the last two.
Possible content
The four operations applied to decimal and whole numbers without the use of a calculator.
Resources
None.
Solution/Notes
Pupils’ own answers for four additions involving decimals giving an answer of 1.
7.92 ( ) (6.5 – 1.42)
Pupils’ own explanations and examples of decimal × whole number and decimal ÷ whole number
Original Material © Cambridge University Press 2010
Original Material © Cambridge University Press 2010