I can appreciate the mathematical structures that underpin subtraction of numbers represented in standard form.
I can appreciate the mathematical structures that underpin subtraction of numbers represented in standard form.
Standard form - 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).
When subtracting 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.
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$$7.5\times10^{-4}$$ - 0.00075
$$5.7\times10^{4}$$ - 57000
$$5.5\times10^{4}$$ - 55000
$$5.7\times10^{8}$$ - 570000000
$$7\times10^{4}$$ - 70000
$$-9\times10^2$$ - is negative
$$9\times10^2$$ - is positive and less than 1000
$$9\times10^{-2}$$ - is less than 1
$$2\times10^{9}$$ - is even and greater than 1000
