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Wooden counting rods used to calculate mathematics using colour and shape in early school books, friends of ten
One meter. Photography in high resolution.
A horizontal bar chart. Abstract concept representing gradual increase or expansion. A change in the ratio of blue and red. 3D rendering. white background. Perspective from an angle.
Business graphs and financial reports
Crime Scene Investigation - .357 bullet casing as a piece of evidence placed with forensic ruler and yellow marker for documentation
Multicolored sections of tape measures forming bar graph
Red ruler on white background. 3D rendering. Horizontal composition.
Montessori Gold Material and card and Gold Bank
bamboo ruler with measures in centimeters and inches isolated on white background
Good Curling! Scoreboard for a curling game.
Picture of yellow wooden ruler isolated on white background
3 spheres slide down glass tubes
Horizontally positioned evenly lit measuring stick in high resolution.
Five different colored sponges with numbers in a row
Collection of Pipe Tube Metal Material Various Selection
Close up detail of a log/log slide rule isolated on a black background.
The Whiteboard showing the score of local political election voting count
Colorful Numbers
Crime Scene Investigation - .357 magnum bullet casing as a piece of evidence placed with forensic ruler evidence for documentation
Close-up of tape measure on a green background, space for copy.
Raw black homemade spaghetti bunch isolated. Dry black noodles macaroni bundle. Close-up. with mesura.
Pieces of cheap bingo game showing numbers. Top view, full frame
Ruler and chalk on green chalkboard, closeup
Risks in investment abtracts
Materials in a classroom for students of Montessori alternative pedagogy.
Round steel shaft in the factory warehouse
Odometer with black, white and red numbers
Wood ruler on white background. 3D rendering. Horizontal composition.
White numbers walk on a doorknob, numerology
Number 1 Pattern Design on Banknote
Free Images: "bestof:Counting rod horizontal numeral 9.svg en Counting rods Own Mizusumashi 18 01 17 October 2008 UTC Counting rods"
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