The standard form will be:
a. 3.15
b. 3.015
<h3>How to calculate the value?</h3>
It should be noted that the question is simply about converting the expanded form to standard form.
This will be:
(3 × 1) + (1 × 0.1) + (5 × 0.01)
= 3 + 0.1 + 0.05
= 3.15
b. (3 × 1) + (1 × 0.01) + (5 × 0.001)
= 3 + 0.01 + 0.005
= 3.015
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