100 pages Adding and Subtracting 2 and 3 digit numbers is an excellent t subtraction and addition resource with many pages for review, preteaching, or reteaching. Great for independent work or to use during small group, RTI, or intervention. 100 pages Adding and Subtracting 2 and 3 digit numbers also lends itself to homework pages!100 pages Adding and Subtracting 2 and 3 digit numbers includes:adding 2 digits with regrouping in onesadding 2 digits with regrouping in tensadding 2 digits with reg