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Features

  • Forms A and B ask the same questions with different numbers
  • Add doubles and near doubles, and make a ten to add
  • Get to ten to subtract, and think addition to subtract
  • Answer eight addition and eight subtraction facts from memory
  • Solve a follow-the-arrows puzzle
  • The last four questions (adding three numbers, fact families, missing numbers anywhere, and = or ≠) are for the states that teach them in 2nd grade
  • Answer keys name the lesson and skill of every question

Skills Covered

  • Doubles and near doubles
  • Make a ten to add (8 + 6 = 8 + 2 + 4)
  • Get to ten to subtract (14 − 4 − 2)
  • Think addition to subtract
  • Addition facts to 20 from memory
  • Subtraction facts to 20 from memory
  • Follow-the-arrows fact puzzles
  • Add three numbers: a ten or a double first
  • Fact families
  • Missing numbers in any place
  • Equal and not equal (= and ≠)
  • True or false number sentences

How to Use This Pack

Seven pages for the first unit of 2nd grade, facts and strategies within 20. Page 1 is a pre-check to give before the unit, on the 1st grade facts it builds on. Pages 2 and 3 are a review to do together before the test. Pages 4 and 5 are the unit test, Form A. Pages 6 and 7 are Form B: the same questions in the same order with different numbers, for a retake, a make-up or a second seating. Each form has 12 questions, one point each, and a Score line on its first page.

In the Classroom

Give the pre-check on the first day of the unit and sort the class by what they missed. Do the review the day before the test, going over each question together. Questions 5 and 6 are eight facts each: give the point when all eight are right, or score them by the fact if you like, and time them if you are checking fluency. Questions 9 to 12 (three numbers, fact families, missing numbers, = and ≠) are taught in 2nd grade in some states: leave out the ones your class does not learn and score out of what is left. The answer keys name each question's skill, so a missed question points to the lesson to reteach.

At Home

Use the review as practice before a test at school, or Form B as a check after the unit. Ask your child to say how they found each answer: a double, a ten, or an addition fact they know.

Tips for Success

  • Ask students to show the ten they made, not only the answer
  • Keep a double ten frame out for the review
  • On the near doubles, ask "1 more or 1 less than the double?"
  • Read ≠ aloud as "is not equal to"
  • Use Form B as a retake after reteaching what was missed

Common Core Standards Alignment

This pack supports the following Common Core State Standards for Mathematics:

  • 1.OA.B.3 Use the order and grouping rules of addition as shortcuts, for example knowing 5 + 9 gives the same answer as 9 + 5.
  • 1.OA.B.4 Treat subtraction as finding a missing addend: to solve 12 - 9, ask what added to 9 makes 12.
  • 1.OA.C.5 Connect counting with adding and subtracting, such as adding 4 by counting on four more.
  • 1.OA.C.6 Add and subtract to 20, working fluently within 10, with strategies like counting on, making ten, fact families and doubles plus one.
  • 1.OA.D.7 Know the equal sign means both sides have the same value, and decide whether addition and subtraction equations hold true.
  • 1.OA.D.8 Solve for the missing number in adding or subtracting equations like 9 + ? = 15 or ? - 4 = 6.
  • 2.OA.B.2 Add and subtract to 20 quickly using strategies done in the head, and by year's end instantly recall every sum of two single-digit numbers.
  • 2.NBT.B.6 Find the sum of two, three or four two-digit numbers using place value and properties of addition.

© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.

2nd Grade Facts Within 20 Test

2nd Grade

A unit test for addition and subtraction facts within 20 in 2nd grade: a one-page pre-check, a two-page review, and the unit test in two forms (A and B).

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What’s Included

  • A one-page pre-check (6 questions)
  • A two-page review to do together before the test
  • The unit test in two forms, A and B (12 questions each)
  • Answer keys that name each question's lesson and skill (14 pages in all)
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