Debug Algorithm
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Addition & Subtraction Strategies Math Anchor Charts and Posters
Teach addition and subtraction within 10 through two digit addition and subtraction and 3 digit addition and subtraction with regrouping and without regrouping, using base ten blocks, expanded form, number line, standard algorithm, and break apart strategies on clear math anchor charts and posters. Feeling like you’re reteaching addition and subtraction… again? You introduce a strategy. Students nod along. And then five minutes later, they’re stuck. This set of addition and subtraction anchor c
K - 4th
Basic Operations, Math, Numbers
CCSS
1.NBT.C.4
, 2.NBT.B.5
, 2.NBT.B.6
+2
Addition with Regrouping Mat with and without mantipulatives
Use this mat to help students line up their numbers properly and regrouping 10 ones to make 1 ten. Students first practice addition with regrouping using manipulatives and then can transfer that skill to the algorithm. Both mats are included in this file. Put mats in dry erase sleeves for reuse.
K - 2nd
Basic Operations, Math, Place Value
CCSS
1.NBT.C.4
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