How it works
A hundredths grid is a square of 10 by 10 that stands for one whole: each small square is 0.01 and each column of ten is 0.1. Print blank grids, 1 to 20 a page, or tenths strips.
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Shade to show a decimal
To show 0.35, shade three full columns and five more squares. Shading 0.4 on one grid and 0.40 on the next shows the two are the same amount. Twelve grids a page give one grid for each of 12 decimals.
Tenths strips
A tenths strip is one row of ten squares, a whole cut into tenths. Cut the 20-strip sheet apart and lay 10 strips side by side: together they make a hundredths grid.
- Shade tenths in one color and hundredths in another, so 0.35 reads as 3 tenths and 5 hundredths.
Questions and answers
What is a hundredths grid?
A square cut into 10 rows of 10, 100 equal squares. The whole square is 1, a column is one tenth (0.1) and one small square is one hundredth (0.01), so a shaded part can be read as a decimal, a fraction or a percent.
How do you show 0.7 on a hundredths grid?
Shade 7 columns of ten, 70 small squares. 0.7 and 0.70 cover the same part of the grid, which is why a zero at the end of a decimal does not change its value.
What size are the squares?
From 18 mm on the one-grid sheet down to 4 mm on the 20-grid sheet. The line under each sheet gives its square size; print at 100% scale to keep it.