This product is made up of a back and front worksheet that are intended to be used during a guided practice lesson on subtracting across zeros.
After teaching this concept for a few years, I realized that students needed explicit instruction regarding the various situations where zeros are found in regrouping problems. I created this worksheet to use as a guide for students during the lesson. I usually work through the first 3 problems in each section together and then leave the last few for homework as a review.
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The 3rd and 4th Grade Common Core objective is listed at the bottom of each sheet:
CCSS.Math.Content.3.NBT.A.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
CCSS.Math.Content.4.NBT.B.4 Fluently add and subtract multi-digit whole numbers using the standard algorithm.