Math sol

  • Congruence: Same size and shape

    • Congruent: Two figures that are identical in shape and dimensions.

    • Non-congruent: Two figures that do not share the same shape or size.

  • Adding Integers:

    • Same Sign: Add and keep the sign.

    • Different Signs: Subtract the numbers; the answer takes the sign of the larger number.

  • Subtraction: Keep, Change, Opposite (KCO) - follow the same steps as addition.

  • Multiplication:

    • Same Signs: Always positive.

    • Different Signs: Always negative.

  • Integers: Whole numbers (only negative numbers, positive numbers, and zero).

  • Inequalities:

    • Examples: - (X < 11, 19 ≤ X, 11 ≥ X, X < 17)

  • Coordinate Plane:

    • Quadrants 1 - 4:

    • Quadrant I: Positive x and y.

    • Quadrant II: Negative x, positive y.

    • Quadrant III: Negative x and y.

    • Quadrant IV: Positive x, negative y.