Adding numbers in standard form
I can appreciate the mathematical structures that underpin addition of numbers represented in standard form.
Adding numbers in standard form
I can appreciate the mathematical structures that underpin addition of numbers represented in standard form.
Lesson details
Key learning points
- When adding numbers represented in standard form, place value is an important consideration.
- If the power of 10 is the same for both numbers, it is easy to add.
- Standard form calculations can be done using a calculator.
Common misconception
When adding numbers in standard form, pupils can also add the exponents of 10.
The use of the place value chart shows how the magnitude does not change to the sum of the powers of 10. The place value chart can support pupils to make the correct addition or subtraction of large or small numbers.
Keywords
Standard form - Standard form is when a number is written in the form A × 10^n, (where 1 ≤ A < 10 and n is an integer).
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
$$4.3\times10^{-4}$$ -
$$0.000 \text{ }43$$
$$4.4\times10^{4}$$ -
$$44 \text{ }000$$
$$4.3\times10^{4}$$ -
$$43 \text{ }000$$
$$4.3\times10^{8}$$ -
$$430 \text{ }000 \text{ }000$$
$$4\times10^{4}$$ -
$$40 \text{ }000$$
$$14.4\times10^{-5}$$ -
$$1.44\times10^{-4}$$
$$0.54\times10^{-5}$$ -
$$5.4\times10^{-6}$$
$$340\times10^{-5}$$ -
$$3.4\times10^{-3}$$
$$34\times10^{-5}$$ -
$$3.4\times10^{-4}$$