https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-add-sub-miss-value-prob/v/missing-numbers-in-addition-and-subtraction-within-100 2021-01-16T16:06:37Z Missing numbers in addition and subtraction Sal solves missing number in problems like 73 = ___ + 57. video https://cdn.kastatic.org/googleusercontent/hm2Yt6qC_oBR8C6ep-MMPJh3OIAIqW9rOkpZ6ldRl9SWsyG2TjzYJbq2vJ6usldukpFBuvHJ6_q-8HrTd5TZ388X Missing numbers in addition and subtraction Sal solves missing number in problems like 73 = ___ + 57. https://cdn.kastatic.org/ka-youtube-converted/zTK6XUF0HAs.mp4/zTK6XUF0HAs.mp4 344 Addition and subtraction missing value problems https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-add-sub-miss-value-prob/e/find-the-missing-number-add-sub-within-100 2026-04-07T22:59:30.107127435Z Find the missing number (add and subtract within 100) Practice solving problems where you have to figure out the missing value in an addition or subtraction equation. All numbers are within 100. Lindsay exercise