Place Value
Where a digit lives tells you what it's worth.
Writing and ordering numbersUnderstanding place valueRoundingEstimationMetric units
📖 Learn
Columns
Th | H | T | O . tenths | hundredths. In 4,382 the 3 is worth 300.
Rounding
Look at the next digit: 5 or more → round up, 4 or less → stay.
Metric
1 km = 1000 m, 1 m = 100 cm, 1 kg = 1000 g, 1 L = 1000 ml.
Worked example
Round 3,468 to the nearest hundred
- 1Hundreds digit is 4 → 3,400 or 3,500
- 2Next digit is 6 (5 or more)
- 3Round up → 3,500 ✅
⭐ Practise
π
Ask Professor Pi
Type a question or say where you're stuck. You'll get hints, not just answers!
AI-powered tutor — it can make mistakes, so check with your teacher if unsure.