Evaluate means to find the value of a numerical or an algebraic expression.

Using your calculator efficiently

Maths

Pupils use their understanding of place value and fluency with decimals from this unit in order to extend this understanding to fractions.  In the future unit, pupils will be asked to compare and order both fractions and decimals and will assess when conversion is required.

The prior unit on factors, multiples, squares and cubes helped pupils build on their understanding that any positive integer can be expressed as a product of its factors. This skill is used here to explore multiplying and dividing with decimals.

Arithmetic procedures with integers and decimals

It represents the answer in another format.

What is the purpose of this calculator button?

Sofia works out $$\sqrt{2.5}\times22$$ on her calculator. Which of these shows the calculator input Sofia should use?

Convert $$\frac{280}{250} +1.4^2$$ into decimal form. {{ }}

Ignoring the numbers, which buttons need to be pressed to get this calculation?

Work out the answer to the calculation shown on the calculator display. {{ }}

Work out the answer to the calculation shown on the calculator display. Write your answer as a decimal. {{ }}

 What does this calculator button represent?

__________ means to find the value of a numerical or an algebraic expression.

____________ are used to show negative numbers and group numbers together. 

Work out the answer to  $$5.67^3 + 10$$.  Write all the digits on your calculator display. {{ }}

This lesson will soon be taken down.

Using your calculator efficiently

Lesson outcome