Estimate differences
~9 min
Estimate the difference with friendly numbers.
Round to nearest ten
Point at 58
To round to the nearest ten, look at the ones digit. If it is 0–4, round down. If it is 5–9, round up.
💡 The rounded number ends in 0.
Estimate the difference with friendly numbers.
Point at 58
To round to the nearest ten, look at the ones digit. If it is 0–4, round down. If it is 5–9, round up.