Metric Ruler Is Divided Into
Rulers are an essential tool to have, only if yous're struggling with how to read a ruler, you're not alone. At that place are so many lines on a ruler, it can get confusing to figure out what they all hateful. In this guide, nosotros'll explain why you should know how to read a ruler and give you lot pace-past-step instructions on how to read a ruler in inches and cm. We'll besides provide you with some helpful resources you tin can utilize to keep honing your ruler-reading skills. Knowing how to read a ruler is of import, not just for school but also for daily life. For case, if you lot wanted to brand something out of construction paper, y'all'd probable demand to use a ruler to measure how much of the textile you would demand. Or what if you wanted to frame a photo you have? In this instance, y'all might have to measure the picture to come across what kind of frame information technology would fit in. The truth is that there are tons of moments in life when you lot'll need to know how to read a ruler. And if you lot don't know how to read a ruler, then you'll likely endure some consequences. For case, what if you brand 2 pieces of something that don't fit together because one is shorter or longer than it was supposed to be? Or what if y'all mess up a science experiment because you didn't accurately read the measurement of a slice of cord y'all cutting? It'southward pretty obvious that knowing how to read a ruler is of import to not simply your grades in school but also your day-to-day life. At that place are two types of rulers y'all tin can utilize: the inch, or purple, ruler and the centimeter, or metric, ruler. Inches stand for to the regal organization, which is the main measuring organisation used in the Us and a smattering of other countries. Meanwhile, centimeters are office of the metric organisation, which is used around the world in both everyday life and science. While we volition be providing pictures you can apply to follow our instructions, we recommend getting out your ain ruler or measuring record so you can follow forth in real time. Permit's kickoff by looking at how to read a ruler in inches. If you're American, this is the measurement you lot probably know ameliorate than centimeters, which are sometimes included on your standard 12-inch, or 1-pes, ruler (we'll become over how to read a ruler in cm in the adjacent section). Here's a picture of an inch ruler: Right away, you should be able to tell that this ruler uses inches, as it'due south divided into 12 equally spaced areas (labeled one-12), and we know there are 12 inches in a foot (ignore the cm below). Now, detect the lines betwixt each inch, with some longer and some shorter than others. Each of these tiny lines represents a fraction of an inch. At that place are five unlike lengths of lines in full. Each inch is divided into xvi lines, significant that the space between each line is 1/16 inch long—this is the smallest length you can measure out with a ruler. (Note that some rulers only go downward to ane/eight inch lines, whereas others become downwards to 1/32 inch lines.) The inch is the biggest unit of measurement on a ruler and is represented by the longest line. Each 1-inch line is labeled with a number indicating what inch it is on the ruler (as the image above shows). Example: If you lot were to mensurate the length of a canvas of computer paper, the piece of paper would come up to the eleven-inch mark on your ruler, indicating that it's exactly 11 inches long. The second-biggest unit on a ruler is the 1/2 inch, which is represented by the second-longest line. These typically aren't labeled but might be on some rulers (in which instance y'all'd encounter numbers such as 1 1/2 in, 2 1/ii in, etc.). The ane/2-inch line is located midway between every inch on a ruler. The midpoint between seven and 8 inches, for instance, would be seven ane/ii (or 7.v) inches. Case: If y'all were to mensurate the width (instead of length) of a piece of computer paper, the piece should come up exactly to the 1/two inch line betwixt 8 and 9 inches, indicating that the width is 8 1/2 (eight.five) inches. The third-biggest lines on a ruler are the 1/four inch lines, which announced midway between the ane/2 inch and whole inch lines: If y'all counted in 1/iv inches on a ruler, yous'd see that the fourth line after 0 inches equals 1/iv inch, the eighth line equals ii/4 (1/2) inch, and the twelfth line equals three/four inch. Example: Say you're measuring a slice of cloth and the ruler ends at the fourth line after the 10-inch marking. This would mean that the cloth is ten 1/iv (10.25) inches long. Side by side is 1/8 inch, which is the 2nd-smallest unit of a ruler. The 1/8 lines are found midway between each one/four-inch line: If you counted in one/viii-inch increments, y'all'd notice that the 2nd line after 0 equals 1/8 inch, the fourth line 2/eight (1/4) inch, the sixth line 3/eight inch, the eighth line 4/8 (ii/4 or i/2) inch, the 10th line five/8 inch, the 12th line six/8 (3/4) inch, and the 14th line 7/8 inch. Example: Say y'all decide to measure out the length of a corn on the cob. You find that your ruler comes to the 2nd line later on the six-inch marking. This would mean that the corn is half dozen 1/8 inches long. Finally, the smallest unit on a ruler is 1/16 inch.These tiny lines that represent ane/16 inch come between all 1/eight-inch lines: Example: Yous're trying to measure the length of your arrow finger. The ruler comes to the seventh line past iii inches. This would mean that your finger is iii 7/xvi inches long. Answers Now that we've looked at how to read a ruler in inches, let's become over how to read a ruler in cm. This is particularly important to know if y'all're studying science (recollect that science generally uses the metric organisation—not the imperial system). Knowing how to read a ruler in cm is also helpful for people who'd prefer to non piece of work with fractions (which you must do with inches) and who'd like to work with other units instead (in this case, millimeters). The standard metric ruler is 30 cm long. Each centimeter is labeled with a number to show the measurement it'south referring to. You might see inches on the other side of your metric ruler. In this case, refer to the instructions above to learn how to read a ruler in inches. Also, be enlightened that 30 cm does not direct equal 12 inches, even though they are ofttimes put on the same ruler! Now then, here's what a typical metric ruler looks like: You can tell that this is a metric ruler because it's divided into 30 equally spaced sections and has "cm" written on it(ignore the inches below). Like the inches ruler, you'll see tons of lines on a metric ruler, with some longer and some shorter. Each line represents i millimeter, which is equal to 1/10 or 0.one cm (so x mm brand up 1 cm). There will always be ten lines from one centimeter to the next centimeter. In total, there are three different lengths of lines on a metric ruler. The longest line represents the biggest unit of measurement on the ruler: i cm. Each centimeter is labeled on the ruler (1-xxx). Instance: You take out a ruler to measure the width of your fingernail. The ruler stops at 1 cm, significant that your blast is precisely 1 cm wide. The center-length line on a metric ruler is the one/2 (0.five) centimeter line, which comes midway betwixt every centimeter (in other words, it's the fifth line afterwards every whole centimeter): So if you counted v lines from 9 cm, for instance, you'd go nine.5 cm (or 95 mm). Example: Say you're measuring the width of your smartphone, and it comes upwards to the fifth line later on 4 cm on your ruler. This would mean that the phone is 4.five cm (45 mm) wide. The smallest unit of measurement a metric ruler can measure is 1 mm, or 0.1 cm. These are the smallest lines on the ruler, that is, the ones that come between the whole centimeter and ane/2 centimeters: Example: You're measuring the length of a strand of hair. The strand comes to the ninth line after 16 cm on the ruler. This would mean the strand is 16.9 cm long (that'southward xvi cm + 9 mm). Answers If you want any extra assistance with learning how to read a ruler in cm or inches, videos and worksheets tin exist first-class resources. Hither are two piece of cake-to-follow videos to farther help you learn how to read a ruler: How to Read a Ruler in Inches How to Read a Ruler in cm If you'd rather test out your ruler-reading cognition with practice questions, then it'south a smashing idea to download free measurement worksheets from these math sites: All of these resources, in addition to the scattering of practice questions we gave you lot higher up, should be enough to become yous reading a ruler in no time at all! Got questions about decimals and fractions?Our practiced guides will teach you how to convert decimals to fractions and how to add and subtract fractions. Metric rulers commonly have simply centimeters and millimeters on them. But did you know there'due south an fifty-fifty tinier unit called nanometers? Learn how to convert nanometers to meters and other measurements with our in-depth guide. Ever seen Roman numerals but didn't know how to read them? Check out our detailed guide and yous'll be on your way to understanding this ancient numerical system!
Why You Should Know How to Read a Ruler
How to Read a Ruler: Imperial vs Metric
How to Read a Ruler in Inches
Inch Ruler Exercise Questions
How to Read a Ruler in Centimeters
Centimeter Ruler Practice Questions
vi Additional Resources for Learning to Read a Ruler
What'south Side by side?
Hannah received her MA in Japanese Studies from the University of Michigan and holds a bachelor'due south degree from the University of Southern California. From 2013 to 2015, she taught English in Japan via the JET Program. She is passionate about education, writing, and travel.
Metric Ruler Is Divided Into,
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