2ND GRADE THREE-DIGIT NUMBER SUBTRACTION iREADY MATH UNIT 3 LESSON 17 WITH REGROUPINGThis pack is a great addition to any Math Curriculum for Second Grade. It offers your students extensive practice understanding three-digit number subtraction with regrouping. It includes practice on solving addition equations and word problems with with in 1000. There is practice with open number line, breaking numbers into hundreds, tens and ones, using quick drawings to represent hundreds, tens and ones, h