Lesson 18 Add a pair of two-digit numbers with varied sums in the ones, and compare the results of different recording methods

2023-12-152023-12-15Mathematics, Mathshttps://dsstorage-hbmsu.com/handle/123456789/2032Topic D: Varied Place Value Strategies for Addition to 100pdfhttps://creativecommons.org/licenses/by-nc-sa/4.0/Addition, Subtraction, Place Value, Module 6513.2 G1M6 L18 2015QA115 .G1M6 L18 2015Lesson 18 Add a pair of two-digit numbers with varied sums in the ones, and compare the results of different recording methodsText