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Equalities and inequalities
Textbook Part 4, pp. 38–39
GoalCall a statement with “=” an equality and one with “>” or “<” an inequality; spot mistakes.
New words
equality · tenglikinequality · tengsizlikgoal · gol
Explanation
Statements with “=” are equalities: 5 + 3 = 8. Statements with “>” or “<” are inequalities: 7 > 4, 12 < 20. An equality or inequality can be true or false — to check, work out both sides.
Worked examples
The Stars scored 5 goals and the Eagles 3: 5 > 3, so the winners scored 5 − 3 = 2 more.
From the gate to the school door Aziz took 50 steps and Sarvar 60. Aziz needed fewer steps, so his steps are longer.
Class activity
Children get statements (8 + 2 = 10, 9 < 6, 15 > 12 + 1…). They underline equalities in green and inequalities in blue, and fix the false ones.
Practice
1
Equality or inequality: 14 − 4 = 10
An equality (true)
2
Fix the mistake: 9 < 6
9 > 6
3
True or false: 15 > 12 + 1?
True (15 > 13)
4
Put “<” or “=”: 30 + 7 ... 37
=