Base 10 blocks uses a 'touch & know' style of representing mathematical functions. Using the blocks it is simple to physically 'do' the equation or 'see' the 'groups'. Includes 1x block, 10x flats, 20x longs, 100x units, 1x parent guide.
You can get them out again when they are struggling through fractions. The same physical representation assists with the understanding of parts of a whole.
Recommended for ages 5 years +