How do you round up 17914351 to nearest tenth of a million?

Answer 1

1 million = 1,000,000

→ 17914351 = 17914351 ÷ 1,000,000 million = 17.914351 million

To the nearest tenth of a million this is rounded using the hundredth of a million to decide whether to round up or down. The hundredth of a million digit is 1, so sound down

→ 17.914351 million → 17.9 million to the nearest tenth of a million

→ 17.9 million = 17.9 × 1,000,000 = 17,900,000

Alternatively:

Tenth of a million = 1/10 × 1,000,000 = 100,000

→ Rounding to the nearest tenth of a million is rounding to the nearest 100,000 (hundred thousand)

The hundred thousand digit is the 6th digit from the right hand end (of a whole number), so the ten thousand digit (the 5th digit from the right hand end) is the deciding digit. Round the 6th digit based on the 5th digit and then replace all the digits to the right of the 6th digit by zeros.

The 5th from the end is '1', so round down

→ 17914351 → 17900000 to the nearest tenth of a million.