Place Value Blocks
Virtual base ten blocks: build numbers with units, rods, flats and cubes, exchange 10 for 1, and add and subtract step by step.
Free, runs in the browser, no sign-in or installation.
- Subject
- Mathematics
- Area
- Numbers
- Level
- Primary school
What you can do
- Add and remove units, rods, flats and cubes in each column; the app shows the number, its expanded form and a place value table.
- Exchange 10 pieces for one bigger piece or break one piece into 10, and practise making and reading numbers with a check.
- Add and subtract step by step: the blocks and the column method show carrying and exchanging.
- See why the digit sum shows divisibility by 3 and 9, and compare numbers column by column.
- Work with whole numbers up to 9,999 or decimals to hundredths; print worksheets or pieces to cut out, or save the board as a PNG.
Pictures in the Gallery4
Ready-made pictures made in this app, to download as PNG.
Worksheets and lessons
Lessons with worksheets that use this app.
More apps: Numbers
Number LineFractions, decimals, negative numbers, intervals and inequalities on a number line.
Decimal ZoomDecimals on a zooming number line: placing, comparing and rounding.
Decimal GridDecimals on a hundred grid: fractions, percentages, comparing and calculating.
Hundred ChartMultiples, primes and the sieve of Eratosthenes on a chart of numbers to 100.
Factors and Prime FactorsFactor pairs from rectangles, factor trees and prime factorisation.
RodsColoured rods for numbers, measuring and fractions.