iRubric: Addition/Subtraction of 2 3-digit numbers with regrouping rubric

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Addition/Subtraction of 2 3-digit numbers with regrouping

Add and subtract 2 3-digit numbers using a place value workmat and base ten blocks.

Rubric Code: GX2W226

By Tissue

Draft

Public Rubric

Subject: Math

Type: Handout

Grade Levels: K-5, 6-8, 9-12, Undergraduate

Regrouping in Addition Adding two-digit numbers.
	Poor 1 pts	Fair 2 pts	Good 3 pts
Addition/subtraction with workmat Regrouping using place value workmat and base 10 blocks.	Poor Did not show much understanding of using place value workmat and base 10 blocks in regrouping.	Fair Used the workmat and base ten blocks correctly most of the time in regrouping.	Good Used the workmat and base ten blocks correctly solving all addition and subtraction problems that were to be regrouped.
Addition/subtraction Regrouping without using place value workmat and base 10 blocks. Did Check work for subtraction problems.	Poor Did not show much understanding of how to regroup in addition and subtraction problems. Did not use check work for subtraction problems.	Fair Regrouped correctly in most of the addition and subtraction problems. Showed check work for most of the subtraction problems.	Good Regrouped correctly in all problems. Showed check work for all subtraction problems.