What is the best way to estimate 145.43 ÷ 21.1?(1 point) Responses 140 ÷ 20 140 ÷ 20 150 ÷ 20 150 ÷ 20 130 ÷ 20

Answer 1

To estimate 145.43 ÷ 21.1, you want to round the numbers to make the division simpler.

Both 145.43 and 21.1 can be rounded:

• 145.43 can be rounded to 150.
• 21.1 can be rounded to 20.

So the estimated division would be:

\[ 150 ÷ 20 \]

Therefore, the best choice from your options is:

150 ÷ 20.