Question

Estimate 394/24 by first rounding each number so that it has only 1 nonzero digit.

Answer 1

To estimate 394/24, round 394 to 400 and 24 to 20, to get an estimated quotient of 20 after dividing the rounded figures.

Step-by-step explanation:

To estimate 394/24 by rounding each number to have only one nonzero digit, we round 394 to 400 and 24 to 20. Now, let's divide the rounded figures:

• 400 ÷ 20 = 20

This gives us an estimated result. To round to the nearest whole number, we start with our original rounded figures since both have 0 decimal places. Therefore, our final estimate after rounding is 20.

When performing mathematical operations like this, it's important to use the rounding rules properly. For division and multiplication, we round the final answer to the number of significant figures that matches the number with the least significant figures used in the calculation.

Answer 2

48 million

Step-by-step explanation:

Since 48,000,000 has TWO non-zero numbers, not one, it can't be the

answer.

The largest digit in the given number is the ten-millions digit, so

you want to round to the nearest ten million, rather than the nearest

million.

47,859,600 rounds to 50,000,000, to one significant digit.

Normally, we would say "round to one significant digit," but you

probably have not seen that term. Your question means the same th