Question

evaluate the following products without actual multiplication
30.5
$30.5 \times 29.5$
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Answer 1

answer

explanation

30.5 × 29.5

899.75

Answer 2

Answer:

=899.75

Step-by-step explanation:

=(30-0.5)(30+0.5)

=(30)²-(0.5)²

=900-0.25

=899.75