29:29'must have', 'might have', 'should have' & 'can't have' to talk about the past: Live English Class
BBC Learning English
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-add-sub-neg-number-line/v/interpreting-integer-expressions Interpreting integer expressions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-add-sub-neg-number-line/e/understanding-addition-and-subtraction-on-the-number-line?utm_source=YT&utm_medium=Desc&utm_campaign=7thgrade Watch the next lesson: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-add-sub-neg-fractions/v/adding-fractions-with-different-signs?utm_source=YT&utm_medium=Desc&utm_campaign=7thgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-add-sub-neg-number-line/v/integer-equations-to-describe-diagram?utm_source=YT&utm_medium=Desc&utm_campaign=7thgrade Grade 7th on Khan Academy: 7th grade takes much of what you learned in 6th grade to an entirely new level. In particular, you'll now learn to do everything with negative numbers (we're talking everything--adding, subtracting, multiplying, dividing, fractions, decimals... everything!). You'll also take your algebraic skills to new heights by tackling two-step equations. 7th grade is also when you start thinking abou
Published 2015-09-11 · Watch on YouTube ↗
Availability and playback restrictions are controlled by the original channel.
29:29BBC Learning English
06:07
47:40
26:06The Royal Institution
07:47
07:28
14:14Allow Google Analytics to measure visits. Your history stays in your browser. Privacy details