Art of Problem Solving: Subtraction With Negatives Part 1

Address any kind of math concept or problem with a series of problem-solving strategies. Over 12 days of different activities and increasing skills, learners practice different ways to solve problems, check their answers, and reflect...

Just over one third of all adults struggle when performing math operations with negative numbers. Addressing these skills early and often prevents these challenges later in life. Through multiple examples, worked step by step, viewers...

Bringing the Khan Academy SAT video series to an end, Sal uses The Official SAT Study Guide to complete the final 16 problems (page 867). In this video, he solves problems 1-7 quickly and proficiently.

Video tutorial uses examples to explain how to work subtraction problems with negatives. [4:36]

Video tutorial uses examples to provide practice solving square root problems.(Part 1) [11:32]

Video tutorial uses problems to reinforce understanding that the angles in a triangle always add up to 180 degrees. (Part 1) [3:55]

Video tutorial uses everyday examples to introduces percentage increases and decreases. (Part 1) [8:24]

With an enthusiastic instructor who writes clear steps on a whiteboard, this video demonstrates how to solve an inequality by dividing by a negative number. What makes this video stronger is the second part of the video, in which the...

Solve this real world word problem in just one written step. The original inequality is a division problem, so to solve it, use the multiplication property of inequality. Was the problem solved by multiplying a negative number? Yes! So...

Help your learners grasp inequalities with this video. A lecturer leads viewers through solving an inequality by multiplying by a negative number, citing the multiplication property of inequality and finishing with set notation. This is...