This updated collection of scaffolded practice pages comes from my experiences teaching third grade students the concept of addition and subtraction branching. Branching is a method of decomposing numbers to add and subtract. Included is also a description of how to display students' branching with matching printables, so that students collectively can create a 'mathterpiece' with their branching.
Most of the sums are within 100, but a few of the addition sums go over 100. These are noted with a star.
These practice pages are best for students just beginning to learn double digit addition and subtraction with regrouping.
Pages 3-4 ---Teacher Notes
Pages 6-7---Teacher Addition Examples
Pages 8-13---Addition Branching Trees
Pages 14-31---Addition Practice Pages and Word Problem Practice
Page 32---Addition Assessment
Pages 34- 35---Teacher Subtraction Examples
Pages 36-41---Subtraction Branching Trees
Pages 42-59---Subtraction Practice Pages and Word Problem Practice
Page 60---Subtraction Assessment
Page 62-67---Branching Tree Templates
Page 68-69---Number Bond House Templates
These practice pages meet the common core standards below:
CC 1.NBT.4 Add within 100, including adding a two-digit nuber and a one-digit number and a multiple of 10...using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
CC2.NBT.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
The word problem pages meet these common core standards:
CC2.OA.1 Use addition and subtraction within 100 to solve one-and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
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