7.NS.1a Describe situations in which opposite quantities combine to make 0

Posted: December 1, 2014 in Advance

Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.


Isolation Drills:

Adding and subtracting fractions with unlike denominators

Adding and subtracting negative numbers

Adding and subtracting negative numbers word problems

Adding negative numbers

Constructing and interpreting absolute value

Understanding addition and subtraction on the number line

Understanding addition and subtraction with negative numbers

Interactive Practice:

  1. Applications of Integers – Deals with negative numbers in the real world; temperature, banking, and sea level measurement are discussed, in addition hockey’s use of negative numbers is included
  2. Add Fractions – Index of six activities
  3. Adding and Subtracting Fractions with Like Denominators – Five multiple-choice questions
  4. Adding and Subtracting Fractions with Unlike Denominators – Five multiple-choice questions
  5. Adding and Subtracting Integers – Using a number line, several examples of adding to a negative integer are given
  6. Adding Fractions – Six activities available from Visualizing Fractions
  7. Colored Chip Models – Use manipulatives to model addition, subtraction, multiplication, and division with positive and negative integers [includes two practice problems]
  8. Compare Fractions – Two activities available from Visualizing Fractions
  9. Comparing and Ordering Integers – Number Line practice
  10. Comparing Fractions – Summary of ways of comparing fractions [Skillwise factsheet]
  11. Comparing Values – Create your own math facts worksheets for comparing values. Problems can include calculations using positive and negative numbers, and two digit decimal values
  12. Estimate Fractional Distance – Watch Grammy carefully and estimate the fractional distance that represents where she jumped over the hedge.
  13. Estimating Decimal Sums and Differences – Five multiple-choice questions
  14. Estimating Sums and Differences of Fractions – Five multiple-choice questions
  15. Explaining Negative Numbers – Video from YouTube (may be blocked by some school filters)
  16. Find Thirteen Ways of Expressing Half – After Dr. Marbles illustrate ways to express one half you look for the other ways.
  17. Fraction Models – This tool, an interactive applet, explores several representations for fractions using adjustable numerators and denominators. You can see decimal and percent equivalents, as well as a model that represents the fraction are available for upper grades.
  18. Fraction Practice – All operations, mixed practice – (explanations given for wrong answers)
  19. Fractions: Rectangle Multiplication – Interactive site from the National Library of Virtual Manipulatives
  20. Identify Fractions – Six activities available from Visualizing Fractions
  21. Negative Numbers for Children – Learn this card game to help students understand negative and positive numbers.
  22. Negative Numbers on a Number Line – Explanation from the Math League
  23. Operations with Integers – Add and subtract integers
  24. Operations with Integers – Complete addition and subtraction sentences with integers
  25. Operations with Integers – Add and subtract integers: word problems
  26. Practice with Order of Operations – Ten practice problems [answers available] [from the Wayback Machine Internet Archive.]
  27. Rename Fractions – Eight activities available from Visualizing Fractions
  28. Rounding Fractions and Mixed Numbers – Five multiple-choice questions
  29. Subtracting Fractions – Five activities available from Visualizing Fractions
  30. Teaching Operations for Integers – Number line practice, patterns and more.
  31. The Number Line – Sea level and temperature examples are given on a vertical number line
  32. Tips for Teaching Integers – Helpful tips on teaching number line, negative and positive.
  33. Understanding Integers – Lesson 6 from Spy Guys Interactive



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