Introduction to Negative Numbers — Flashcards
ICSE · Class 5 · Mathematics
30 flashcards for Introduction to Negative Numbers (ICSE Class 5 Mathematics) to test yourself on key terms and facts.
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Which is greater: -3 or 2? Use a number line to explain.
Answer
Step 1: Draw a number line with 0 in the middle. Step 2: Mark -3 on the left of 0 and 2 on the right of 0. Step 3: Since 2 is to the right of -3, it is greater. Answer: 2 > -3…
Arrange in ascending order: -5, 3, 0, -2, 4
Answer
Step 1: Draw a number line and mark all numbers. Step 2: Start from the leftmost (smallest) to rightmost (largest). -5 is farthest left, then -2, then 0, then 3, then 4. Answer: -5 < -2 < 0 < 3 < 4…
Arrange in descending order: -1, 6, -4, 2, 0
Answer
Step 1: Use a number line. Step 2: Start from right to left: 6 is greatest, then 2, then 0, then -1, then -4. Answer: 6 > 2 > 0 > -1 > -4…
What is the negative of -7?
Answer
The negative of a number means changing its sign. Negative of -7 = +7 or simply 7. Answer: 7…
What is the negative of 5?
Answer
To find the negative, change the sign. Negative of 5 = -5. Answer: -5…
What is the negative of 0?
Answer
Zero has no sign. Its opposite is still zero. Answer: 0…
If the temperature is -3°C and it drops by 4°C, what is the new temperature?
Answer
Step 1: Current temperature = -3°C Step 2: Drop means subtract: -3 - 4 Step 3: Change subtraction to addition: -3 + (-4) = -7 Answer: -7°C…
A submarine is at 50 m below sea level. It goes down 30 m more. Where is it now?
Answer
Step 1: Below sea level = negative number → -50 m Step 2: Goes down 30 m → add -30 Step 3: -50 + (-30) = -80 Answer: -80 m (80 m below sea level)…
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