https://www.khanacademy.org/math/cc-fourth-grade-math/imp-place-value-and-rounding-2/imp-comparing-multi-digit-numbers/v/comparing-multi-digit-numbers 2022-10-06T09:48:27.705455518Z Comparing multi-digit numbers Lindsay compares multi-digit numbers such as 350,000 and 53,000.  video https://cdn.kastatic.org/ka_thumbnails_cache/734cfba6-18b1-4b86-b2c9-6be59ac968e3_1280_720_base.png Comparing multi-digit numbers Lindsay compares multi-digit numbers such as 350,000 and 53,000.  https://cdn.kastatic.org/ka-youtube-converted/nrOA1U5jH6Q.mp4/nrOA1U5jH6Q.mp4 358 Number play https://www.khanacademy.org/math/cc-third-grade-math/intro-to-multiplication/multiplication-with-arrays/v/multiplication-as-groups-of-objects 2023-06-01T14:45:55.494628927Z Multiplication with arrays Let's explore this video about representing 12 with multiplication. It shows 12 as 4x3, 3x4, 2x6, 6x2, 1x12, and 12x1. This helps students understand multiplication and different group arrangements. Sal Khan video https://cdn.kastatic.org/googleusercontent/kKDd0Qat3iVVLmClu1iQvLEcXQuMctvzLEFUarlC8vWVVQeqGe8w9d1R5fnVPnPWotifAqGWxN6HOWNHnEYOqIp61Q Multiplication with arrays Let's explore this video about representing 12 with multiplication. It shows 12 as 4x3, 3x4, 2x6, 6x2, 1x12, and 12x1. This helps students understand multiplication and different group arrangements. https://cdn.kastatic.org/ka-youtube-converted/cDpBtkU2cf8.mp4/cDpBtkU2cf8.mp4 259 Number play https://www.khanacademy.org/math/cc-third-grade-math/imp-addition-and-subtraction/estimate-to-add-multi-digit-numbers/v/estimating-adding-large-numbers-by-rounding 2023-06-01T14:45:55.494628927Z Estimating when adding multi-digit numbers Let's learn about estimating when adding multi-digit numbers. We see how to round numbers to the nearest 10 and then add them together to get an approximate sum. This technique is helpful for us when we need to make quick mental calculations and don't require an exact answer. video https://cdn.kastatic.org/googleusercontent/IJjQoKIpkSb7MOlzURIQuzBP2g4j0MJI7jk1D-jlWjj1MxrkPNVgNOv1pV3TqDqSqvOuHfO3c4ZMs-hYDNSmH0qI3w Estimating when adding multi-digit numbers Let's learn about estimating when adding multi-digit numbers. We see how to round numbers to the nearest 10 and then add them together to get an approximate sum. This technique is helpful for us when we need to make quick mental calculations and don't require an exact answer. https://cdn.kastatic.org/ka-youtube-converted/CZuYBGBClG0.mp4/CZuYBGBClG0.mp4 220 Number play https://www.khanacademy.org/math/kn-revision-class-6-math/x054680bf0d7836c8:week-1/x054680bf0d7836c8:number-play/v/multiplying-whole-numbers-and-applications-4 2021-06-02T12:43:21Z Multiplication estimation example Estimating the product of two, 2-digit numbers Sal Khan video https://cdn.kastatic.org/googleusercontent/mSxpON33fACg5E8JgbVm-bgmsW9ysEFYVAtzJdRh8SaqZTY4DwTR1v2-gpziWBOzHItoM9TiceY1nsudJRCGdhscAw Multiplication estimation example Estimating the product of two, 2-digit numbers https://cdn.kastatic.org/ka-youtube-converted/tx2Niw7aJJ8.mp4/tx2Niw7aJJ8.mp4 111 Number play https://www.khanacademy.org/math/kn-revision-class-6-math/x054680bf0d7836c8:week-1/x054680bf0d7836c8:number-play/e/number-play-exercise 2025-02-06T10:21:54.593417394Z Number play revision . Devashish Phadnis exercise