Mathematics
Mathematics
Problem
Select all the numbers that round to 7.4 when rounded to the nearest tenth. a. 7.35 b. 7.34 c. 7.31 d. 7.45 e. 7.44 f. 7.41Intuitive explanation
Rounding to the nearest tenth means looking at the hundredths place to decide whether to round up or down. Any number from 7.35 up to (but not including) 7.45 will round down to 7.4, while numbers from 7.45 up to 7.55 will round up to 7.5. The key is checking that digit in the hundredths place: if it's 0–4, round down; if it's 5–9, round up.
Intuitive explanation
Rounding to the nearest tenth means looking at the hundredths place to decide whether to round up or down. Any number from 7.35 up to (but not including) 7.45 will round down to 7.4, while numbers from 7.45 up to 7.55 will round up to 7.5. The key is checking that digit in the hundredths place: if it's 0–4, round down; if it's 5–9, round up.