Grade 9Mathpractice16 questions

Inequalities

Grade 9: inequality symbols < > ≤ ≥, show an inequality on a number line, solve a linear inequality, integer solutions, reverse the sign when multiplying by a negative.

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Free to play. Teams answer on one screen; your phone is the remote. No student devices.

Questions

  1. Which symbol makes this true: 7 __ 4?

    • <
    • =
    • >
    • ≤
    Show answer>

  2. Which symbol means "less than or equal to"?

    • <
    • ≠
    • ≤
    • ≥
    Show answer≤

  3. The inequality -3 < -5 is true. (True or false?)

    Show answerFalse

  4. On a number line, x ≥ 2 is shown with which circle at 2?

    • A filled circle, line going left
    • A filled circle, line going right
    • An open circle, line going left
    • An open circle, line going right
    Show answerA filled circle, line going right

  5. x < 3 is drawn on a number line. Which describes it?

    • Filled circle at 3, line to the left
    • Filled circle at 3, line to the right
    • Open circle at 3, line to the left
    • Open circle at 3, line to the right
    Show answerOpen circle at 3, line to the left

  6. Solve: x + 5 > 9

    • x < 4
    • x > 14
    • x > 4
    • x > 5
    Show answerx > 4

  7. Solve: 3x - 2 ≤ 10

    • x ≤ 12
    • x ≤ 4
    • x ≤ 8/3
    • x ≥ 4
    Show answerx ≤ 4

  8. What is the largest integer that satisfies x < 6.5? (Answer out loud)

    Show answer6

  9. How many integers satisfy -2 ≤ x < 3?

    • 3
    • 4
    • 5
    • 6
    Show answer5

  10. What is the smallest integer that satisfies 2x > 7? (Answer out loud)

    Show answer4

  11. When you divide both sides of an inequality by -2, you must reverse the sign. (True or false?)

    Show answerTrue

  12. Solve: -2x > 8

    • x < -4
    • x < 4
    • x > -4
    • x > 4
    Show answerx < -4

  13. Solve: 5 - 3x ≥ 14

    • x ≤ -3
    • x ≤ 3
    • x ≥ -3
    • x ≥ 3
    Show answerx ≤ -3

  14. If x > 2, then -x > -2. (True or false?)

    Show answerFalse

  15. Solve -x/3 < 2. Give your answer as an inequality. (Answer out loud)

    Show answerx > -6

  16. How many positive integers x satisfy 3x - 4 < 11?

    • 3
    • 4
    • 5
    • 6
    Show answer4

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Ring the BellEvery team answers every question. A miss costs a heart; the last team standing rings the bell.High WaterAnswer right to build the class tower 2 floors higher. The sea rises every question: stay dry together!Tug of WarAnswer right to pull the rope your way. Pull it over the line to win!Lucky WheelAnswer right to spin the wheel. Win points, double your score, swap with the leader, or play again.

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