Grade 6 Mathematics · Strand 1: Numbers · Inequalities
Solving Addition and Subtraction Inequalities
A short Grade 6 Mathematics lesson for the CBE curriculum, part of Numbers: Inequalities. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.
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1. What is the solution to the inequality n + 14 < 30?
- A. n < 44
- B. n < 16
- C. n = 16
- D. n > 16
2. Solve w - 8 > 11. Write the number that w must be greater than, that is, the boundary value in w > ___.
Type your answer in the lesson.
3. Akinyi has m mangoes. After her uncle gives her 4 more, she has more than 10 mangoes, so m + 4 > 10. Which of these could be the number she started with?
- A. 5
- B. 6
- C. 7
- D. 3
4. Which statement about solving inequalities is correct?
- A. To solve x + 4 < 9, add 4 to both sides.
- B. Subtracting the same number from both sides leaves the inequality sign unchanged.
- C. x = 5 is a solution of x + 4 < 9.
- D. To solve y - 7 > 10, subtract 7 from both sides.
5. What word describes the opposite operation that undoes another, such as subtraction undoing addition?
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