Khan Academy
Khan Academy offers free, comprehensive fourth-grade math resources including lessons, practice exercises, and videos.
4th grade - Math | Khan Academy
Check out Get ready for 4th grade. Adding 3 eighths and 2 eighths is as easy as adding 3 stars and 2 stars. We'll add and subtract fractions with like denominators. Then we'll check out a special set of fractions, called decimal fractions. We'll even collect and …
Comparing fractions 1 (unlike denominators) - Khan Academy
Sal compares fractions by finding a common denominator. - [Voiceover] What I want to do in this video is get some practice comparing fractions with different denominators. So, let's say I wanted to compare two over four, or 2/4, and I want to compare that to five over 12, or 5/12.
Ordering fractions | Math | 4th grade | Khan Academy - YouTube
In 3rd grade you learned what a fraction is. Now you'll start adding, subtracting, multiplying, and comparing them. You'll also see how they relate to decimals.
Common fractions and decimals | Math | 4th Grade | Khan Academy
2017年3月14日 · Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-f... 4th grade Common Core State Standards skill. Becoming familiar with common fractions and...
Get ready for 4th grade - Math | Khan Academy
Let's build a solid foundation of equal parts so that we'll be ready for fractions in third grade. From circles to rectangles, this unit will make you a whiz at identifying fractional parts.
4th grade math (Illustrative Math-aligned) | Khan Academy
This course contains Khan Academy practice problems crafted to support the Illustrative Math (IM) curriculum. Designed to make it easier for districts, teachers, and students to find and use practice problems that complement IM lessons, this course was not produced in official partnership with Illustrative Math.
Comparing fractions (video) - Khan Academy
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
Intro to equivalent fractions | Fractions | 4th grade | Khan Academy ...
2015年9月11日 · Grade 4th on Khan Academy: 4th grade is the time to start really fine-tuning your arithmetic skills. Not only will you be a multi-digit addition and...
Understand decimals | 4th grade | Math - Khan Academy
Once you know how to place decimals to tenths and hundredths place on the number line, you'll learn how to compare them and write decimals as fractions. Ready to tackle decimals? You'll be amazed at how easy they are to understand when you use grids and number lines.
- 某些结果已被删除