Lesson: One-step Inequalities: Addition or Subtraction Mathematics • Sixth Year of Primary School

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In this lesson, we will learn how to solve one-step linear inequalities by addition or subtraction.

Students will be able to

deduce that if the same number is added to or subtracted from each side of an inequality, the inequality remains true, which is the addition and subtraction properties of inequalities,
deduce that if the same number is added to or subtracted from each side of an inequality, the direction of the inequality does not change,
know that solving one-step inequalities means finding the unknown value to make the statement true,
use these rules to solve one-step inequalities.