https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-sub-neg-intro/v/integer-equations-to-describe-diagram 2021-06-28T22:10:44Z Number equations & number lines Integer equations to describe diagram video https://cdn.kastatic.org/googleusercontent/8ZZzxLl4jvUD6CeEIo42eGGJDZfd9ZBU8m2Mrz8N1b7gyOVmAlrSsXfj92C3Il6V5ze3TEjT2NYI260diaDaDzwk Number equations & number lines Integer equations to describe diagram https://cdn.kastatic.org/ka-youtube-converted/Ddvw2wEBfpc.mp4/Ddvw2wEBfpc.mp4 163 Subtracting negative numbers fluently https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-sub-neg-intro/e/negative-number-addition-and-subtraction--equations-and-number-lines 2025-12-15T17:30:47.676170268Z Number equations & number lines Practice writing addition and subtraction equations to match number line diagrams. Ben S exercise https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/x6b17ba59:subtracting-negative-numbers-fluently/v/adding-the-opposite-with-integer-chips 2023-08-31T15:42:23.143811656Z Adding the opposite with integer chips Use integer chips to explore the conjecture that subtracting a number gives the same result as adding the opposite of the number. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/447b653f-d230-436c-9d0e-03667597667c_1280_720_base.png Adding the opposite with integer chips Use integer chips to explore the conjecture that subtracting a number gives the same result as adding the opposite of the number. https://cdn.kastatic.org/ka-youtube-converted/0O4hGprr71g.mp4/0O4hGprr71g.mp4 311 Subtracting negative numbers fluently https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/x6b17ba59:subtracting-negative-numbers-fluently/v/adding-the-opposite-with-number-lines 2023-08-31T15:42:23.143811656Z Adding the opposite with number lines Explore the claim that subtracting a number is the same as adding its opposite using number lines. We move to the right on the number line when we add a positive number. We move to the left on the number line both when we subtract a positive number and when we add a negative number. So which direction do we draw the arrow when we subtract a negative number on the number line? Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/04743a2a-02d6-4526-889c-122e56c778d5_1280_720_base.png Adding the opposite with number lines Explore the claim that subtracting a number is the same as adding its opposite using number lines. We move to the right on the number line when we add a positive number. We move to the left on the number line both when we subtract a positive number and when we add a negative number. So which direction do we draw the arrow when we subtract a negative number on the number line? https://cdn.kastatic.org/ka-youtube-converted/S5oBJ9aL9QQ.mp4/S5oBJ9aL9QQ.mp4 297 Subtracting negative numbers fluently https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/x6b17ba59:subtracting-negative-numbers-fluently/v/why-subtracting-a-negative-equivalent-to-adding-a-positive 2021-06-30T17:51:05Z Subtracting a negative = adding a positive Find out why subtracting a negative number is the same as adding the absolute value of that number. Sal Khan video https://cdn.kastatic.org/googleusercontent/3wsJlZ4q287NBygeB0fG39s9WtKDtyk4Y8Dg0dtiMhV96V1UoJcQuFaheyT0X8k0cWPOOR2p9Xrt1PECTtUS3Hg Subtracting a negative = adding a positive Find out why subtracting a negative number is the same as adding the absolute value of that number. https://cdn.kastatic.org/ka-youtube-converted/lBscLuttQq0.mp4/lBscLuttQq0.mp4 93 Subtracting negative numbers fluently https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/x6b17ba59:subtracting-negative-numbers-fluently/e/understand-subtraction-as-adding-the-opposite 2023-07-31T23:04:20.970726205Z Understand subtraction as adding the opposite Practice rewriting subtraction problems as equivalent addition problems. For example, 2-9=2+(-9). Lindsay exercise https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/x6b17ba59:subtracting-negative-numbers-fluently/e/adding_and_subtracting_negative_numbers 2026-03-26T05:40:45.96433927Z Subtracting negative numbers Practice subtracting positive and negative single-digit numbers. Marcia Lee exercise