Fractions As Division By Power Of 10 | Place Value And Decimals | 5th Grade | Khan Academy

Keep in mind that a fraction is nothing more than a division problem. So if the denominator is 10 (or 100…or 1000), then all we need to do move the decimal in the numerator that number of zeros to the left.

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Grade 5th on Khan Academy: Whether you are a robot, possum, magic unicorn, or just a normal human being, 5th grade is incredible! You will deepen your knowledge of the decimals that you were first exposed to in 4th grade. In particular, you’ll learn to do all the arithmetic operations–addition, subtraction, multiplication, division–with them and really understand what a decimal represents. This will be complemented by building your fraction muscles where you’ll learn to add, subtract, and multiply any fractions (and begin to divide them). On the measurement front, you’ll explore volume (or how much “space” something takes up) and continue the unit conversion journey begun in 4th grade. 5th grade is also the first time that you get exposed to the fundamental concept of graphing points on a coordinate plane, and you’ll get a very brief exposure to the concept of exponents (when exploring “powers” of 10)! (Content was selected for this grade level based on a typical curriculum in the United States.)

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8 thoughts

  1. Theres clearly a comma in the last 2 fractions. 1,098 is NOT EQUAL to 1098. Even if you live in a country that uses dots as separators (I don’t), theres no need to put anything in that number, its misleading and useless…

  2. I cant thank you enough for this and all these video,s. Im studying music and didnt do my maths gcse,s at school so i was terrified of maths but ive really surprised myself that i can learn this. In school id get left behind because i keep daydreaming and i find it hard concentrating for long but videos are great because i can just watch it again. Thank you so much.

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