Maths topic · Ireland
Place value
Ones, tens, hundreds and beyond: reading, writing, comparing and rounding whole numbers.
Online practice
- Tens and ones First Class
- Make a number from tens and ones First Class
- Teen numbers as ten and ones First Class
- Ten more and ten less First Class
- Compare two-digit numbers First Class
- Hundreds, tens and ones Second Class
- Make a number from hundreds, tens and ones Second Class
- Value of a digit Second Class
- Write numbers in expanded form Second Class
- Write numbers from expanded form Second Class
- Compare three-digit numbers Second Class
- Mentally add 10 or subtract 10 Second Class
- Mentally add 100 or subtract 100 Second Class
- Round to the nearest ten Fourth Class
- Round to the nearest hundred Fourth Class
- Round to the nearest thousand: up to six digits Fourth Class
- Round to the nearest ten thousand Fourth Class
- Round four-digit numbers to the nearest thousand Fourth Class
- Value of a digit in a decimal Fourth Class
- Value of a digit in a decimal Fifth Class
- Round decimals to the nearest whole number Fifth Class
- Round decimals to the nearest tenth or hundredth Fifth Class
Free tools
Place Value Blocks
Build any number from ones, tens, hundreds and thousands blocks, trade ten for one, and see it written in standard, expanded and word form.
Ten Frames
Fill ten frames with counters to show numbers to 20, make ten and practise quick looks. Early number sense for kindergarten to grade 2.
Hundred Chart
An interactive 100 or 120 chart. Shade skip-counting patterns, hide numbers for a missing-number puzzle, and jump by tens and ones.