Place value in action
Comparing two-digit numbers is really a place value question: which has more tens? Pair this page with place value worksheets.Irish curriculum links
- InfantsStage 1 Numeration and counting: small quantities can be compared, and seen at a glance, without counting every item.
- 1st–2nd ClassStage 2 Place value and base ten: a digit’s value depends on its place. The continuum has children comparing two-digit numbers in words and with <, > and =.
- Later onFurther along the continuum, children compare three-digit numbers, first to 199 and then to 999, and then larger whole numbers.
In Irish classrooms the symbols < and > usually come after plenty of talk: “more than”, “less than”, “the same as”. The NCCA toolkit expects children to use both the words and the symbols, so ask for a sentence as well as a symbol now and then.
Pairs with the same digits, like 47 and 74, are a good test of place value. Ask children to say “4 tens and 7 units” or “4 tens and 7 ones” before they choose a symbol. Both phrases are used in Irish schools, and the toolkit uses both.
Summarised in our own words from the Primary Mathematics Curriculum (2023) and the NCCA Mathematics Toolkit.