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N1.3 • Sec 1 MOE
Numbers & Algebra
Integers & Number Line
Add and subtract positive and negative integers on the number line.
0% base complete
Learning objectives
- • Represent integers on a number line
- • Add integers with same and different signs
- • Apply integers to real-life contexts
Learning methods:CRAI-We-YouSpaced reviewRetrievalMetacognition
Brain warm-up (try before we teach)
Try first, then learn step by step
Which is larger: -5 or -2? Enter -5 or -2.
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Foundation — I Do → We Do → You Do
1
Step 1 of 5I Do — Learn
The number line
Numbers to the right are greater; numbers to the left are smaller.
< < 5
Moving right = adding. Moving left = subtracting.
2
Step 2 of 5I Do — Learn
Worked example: -4 + 7
Start at -4 on the number line. Move 7 steps right (+7).
-4 → -3 → -2 → -1 → 0 → 1 → 2 → 3
Answer: 3
3
Step 3 of 5We Do — Guided
Guided: Compare integers
Which is larger: -5 or -2? Enter -5 or -2.
4
Step 4 of 5We Do — Guided
Guided: 3 + (-8)
Calculate .
5
Step 5 of 5You Do — Practice
Practice: Temperature change
At 6 am the temperature was -2°C. By noon it rose by 9°C. What is the noon temperature? (°)
Challenge Round — MOE Exam Level Complete foundation first
Finish all foundation steps to unlock 2 harder questions.