Gani — AI Math Tutor | Karka LMS

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Number Sense

· Examples

✏️ Worked Examples — Step by Step

Easy

Round 273 to the nearest hundred:

💡 7 ≥ 5 → round up.

👁 Show Solution

273 is closer to 300 than to 200. Round up.

✅ Answer: 300

✅300

Medium

Estimate 47 × 22:

💡 Round both numbers and multiply.

👁 Show Solution

50 × 20 = 1000. Actual: 47 × 22 = 1034. Estimate is great.

✅ Answer: ~1,000

✅~1,000

Challenging

Order from smallest: 0.6, 1/2, 0.55, 3/5

💡 Convert all to decimals.

👁 Show Solution

1/2 = 0.50; 0.55 = 0.55; 3/5 = 0.60; 0.6 = 0.60
From smallest: 1/2, 0.55, 3/5 = 0.6.

✅ Answer: 1/2, 0.55, 3/5, 0.6 (last two are equal)

✅1/2, 0.55, 3/5, 0.6

Examples