freesabaiMeasuring with a ruler worksheets
A centimetre ruler drawn at its real size: read the length of a bar above it, draw a line of the length asked, or measure between two arrows that do not start at zero. To the centimetre, half centimetre or millimetre, new lengths every time, with a key.
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The sheet you make is yours: use it in class, print and sell it or sell the file, no credit needed. Everything is made in your browser; nothing is sent anywhere or kept.
How to use it
- Pick the kind of sheet: read the length of the grey bar from 0 (a line to write on), draw a line of the length asked above the ruler, or measure between two arrows that do not start at 0 (a subtraction).
- Pick how fine the lengths are: whole centimetres to begin with, then half centimetres, then millimetres. Pick a 10 or 15 cm ruler and the number of problems. The sheet appears on the right at once; "New random sheet" gives another.
- Press "Print / Save as PDF" and set the scale to 100% (not fit to page): the ruler on paper is then life-size, and a real ruler laid on it matches. The answer key is the last page.
Good to know
- The ruler is drawn in millimetres: a long mark with a number every centimetre, a middle mark every half centimetre, a short mark every millimetre, like a school ruler. Printed at 100% it matches a real one (measure it before printing a stack); on screen its size depends on the display.
- Every length sits exactly on the step chosen (7.5 cm, never 7.3, with half centimetres), is at least 1 cm and never runs past the ruler. Between the arrows, the first arrow is at 0.5 cm or more, and the key writes 9.5 − 2 = 7.5 cm.
- Answers are in decimal centimetres (7.3 cm); if you teach 7 cm 3 mm, the key still reads easily. Problems on one sheet do not repeat while there are enough different lengths.
- Nothing is saved: the sheet is gone when you close the page. For blank paper with real-millimetre squares, try the graph paper.
Report a problem or suggest an idea
Did the ruler print the wrong size, or would you like inches, weighing or measuring volume? Tell us on the feedback page.
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Questions and answers
Is the ruler on paper life-size?
Yes, when printed on A4 at 100% scale (not fit to page). It is drawn in millimetres with centimetre, half-centimetre and millimetre marks. Lay a real ruler on it before printing a stack.
Which kinds of sheet are there?
Read the length of a bar from 0, draw a line of a given length above the ruler, and measure between two arrows that do not start at 0. Lengths to the centimetre, half centimetre or millimetre, on a 10 or 15 cm ruler.
How are the answers written?
In decimal centimetres, such as 7.5 cm or 7.3 cm. Between the arrows the key writes 9.5 − 2 = 7.5 cm; for drawing a line it shows the ruler with a bar of that length. Every length sits exactly on the step chosen.
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