2nd Grade Math | Khan Academy
网页Learn second grade math—addition and subtraction with regrouping, place value, measurement, shapes, and more. (aligned with Common Core standards)
Geometry | 2nd grade | Math | Khan Academy
网页2nd grade 8 units · 75 skills. Unit 1 Add and subtract within 20. Unit 2 Place value. Unit 3 Add and subtract within 100. Unit 4 Add and subtract within 1,000. Unit 5 Money and time. Unit 6 Measurement. Unit 7 Data. Unit 8 Geometry.
Money and time | 2nd grade | Math | Khan Academy
网页2nd grade 8 units · 75 skills. Unit 1 Add and subtract within 20. Unit 2 Place value. Unit 3 Add and subtract within 100. Unit 4 Add and subtract within 1,000. Unit 5 Money and time. Unit 6 Measurement. Unit 7 Data. Unit 8 Geometry.
Khan Academy
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7th - Khan Academy
网页Master the skills of seventh grade math with Khan Academy's interactive lessons on proportions, algebra, negative numbers, and more.
Algebra 2 | Math | Khan Academy
网页The Algebra 2 course, often taught in the 11th grade, covers Polynomials; Complex Numbers; Rational Exponents; Exponential and Logarithmic Functions; Trigonometric Functions; Transformations of Functions; Rational Functions; and continuing the work with Equations and Modeling from previous grades.
1st Grade Math | Khan Academy
网页Learn first grade math—addition, subtraction, length, graphs, time, and shapes. (aligned with Common Core standards)
Class 9 (Foundation) - Math | Khan Academy
网页Unit 8. Unit 9. Identifying supplementary, complementary, and vertical angles. Unit 10. Use Pythagorean theorem to find right triangle side lengths. Use area of squares to visualize Pythagorean theorem. Unit 11. Unit 12. Side and angle properties of a …
Khan Academy
网页Math: Pre-K - 8th grade; Pre-K through grade 2 (Khan Kids) Early math review; 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade; 7th grade; 8th grade; Illustrative math 3rd grade; Illustrative math 4th grade; Illustrative math 5th grade; See Pre-K - 8th grade Math; Math: Get ready courses;
Math - Khan Academy
网页The Mathematics 2 course, often taught in the 10th grade, covers Quadratic equations, functions, and graphs; Complex numbers; Rational exponents and exponential models; Similarity and Trigonometry; Solids; Circles and other …