https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-add-sub-100-word-problems/v/using-crayons 2021-06-24T19:33:08Z Subtraction word problem: crayons Sal solves a subtraction word problem with numbers less than 100. video https://cdn.kastatic.org/googleusercontent/Eat9jFgtM1D4N-dJlcwWNlUb_Zpw0m2g73ylIrYjtmGL0Z2NpyIZEQJ59R3O4ZcWgM7JFP3HAqGlWLgXS90u5nZXzg Subtraction word problem: crayons Sal solves a subtraction word problem with numbers less than 100. https://cdn.kastatic.org/ka-youtube-converted/ZJ39gHgz_Dk.mp4/ZJ39gHgz_Dk.mp4 265 Subtraction of numbers less than 100 (without regrouping)* https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-sub-ones-tens/v/subtracting-two-digit-numbers-without-regrouping 2021-06-24T11:10:09Z Subtracting two-digit numbers without regrouping Sal subtracts 31 from 64 by thinking about tens and ones. video https://cdn.kastatic.org/googleusercontent/KxWYKgCU49W6FJCk2wy3bwRYkvucQnXqYT1OiTNky37A_sIQvbTxqgE6kNu0ADLBl_Io7uxc4_Qi_VeYf6jGNYpm Subtracting two-digit numbers without regrouping Sal subtracts 31 from 64 by thinking about tens and ones. https://cdn.kastatic.org/ka-youtube-converted/RzEFGpe0rv4.mp4/RzEFGpe0rv4.mp4 141 Subtraction of numbers less than 100 (without regrouping)* https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-sub-ones-tens/v/understanding-place-value-while-subtracting-ones 2021-06-24T11:10:10Z Subtracting 1s using place value Sal subtracts 4 from 46 by thinking about place value. video https://cdn.kastatic.org/googleusercontent/zE_lu9RW0Ly7OX9kvDyPsbLa4vl5IlrBjVd4of3m3CC-fZ3BNojOMuZ-TF4X5qeB5oiXmnlz5gWb8dl5X696kq-h Subtracting 1s using place value Sal subtracts 4 from 46 by thinking about place value. https://cdn.kastatic.org/ka-youtube-converted/FWEqB0J6mgA.mp4/FWEqB0J6mgA.mp4 165 Subtraction of numbers less than 100 (without regrouping)* https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-sub-ones-tens/v/understanding-place-value-when-subtracting-tens 2021-04-03T21:31:53Z Subtracting 10s using place value Sal subtracts 40 from 65 by thinking about place value. video https://cdn.kastatic.org/googleusercontent/V3ormHk_JhBSmuTLoUBaH3haZUvaSBtEE8jM6LbXfFZd5EkTrjSwiR5sbdr44sH_-7PGefm3h2URZm0TzspLSfI Subtracting 10s using place value Sal subtracts 40 from 65 by thinking about place value. https://cdn.kastatic.org/ka-youtube-converted/bNNrlzel4Gw.mp4/bNNrlzel4Gw.mp4 157 Subtraction of numbers less than 100 (without regrouping)* https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens/v/comparing-subtracting-1-and-10 2021-04-03T21:31:53Z Subtracting 1 vs. subtracting 10 Sal talks about the difference between subtracting 1 and subtracting 10. video https://cdn.kastatic.org/googleusercontent/gIrfEBgdO6Xw4Yb5zjyym83mo56TuRYTvk9ErMAq6UVcUYbaR82wMyDv7O8tZNd040QdLUZ3DerPiEX7LEphW5s Subtracting 1 vs. subtracting 10 Sal talks about the difference between subtracting 1 and subtracting 10. https://cdn.kastatic.org/ka-youtube-converted/8YR1E7XWPz8.mp4/8YR1E7XWPz8.mp4 152 Subtraction of numbers less than 100 (without regrouping)* https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-ones-tens/e/subtracting-1s-or-10s 2026-04-07T22:23:57.656416987Z Subtracting 1s or 10s (no regrouping) Practice solving problems like 67-5 and 67-50. Cam exercise https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-sub-two-dig-intro/v/subtracting-2-digit-numbers-without-regrouping 2021-06-24T19:33:07Z Subtracting 2-digit numbers without regrouping 1 Sal subtracts 23 from 65 by thinking about tens and ones. video https://cdn.kastatic.org/googleusercontent/CBB_1EWAGnZ4ZSIXVn4X7tPnO8Ztn-hyHCLkHnxymxK9-tBMwRL4qmfNmojMADEGxsrXOMIwFl6ho2utKhFKRACs Subtracting 2-digit numbers without regrouping 1 Sal subtracts 23 from 65 by thinking about tens and ones. https://cdn.kastatic.org/ka-youtube-converted/slIX9EDcHgE.mp4/slIX9EDcHgE.mp4 156 Subtraction of numbers less than 100 (without regrouping)* https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-add-100/a/add-and-subtract-within-100-faq 2022-11-24T00:44:27.489178686Z Add and subtract within 100: FAQ Frequently asked questions about adding and subtract within 100. article