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Addition
· Examples✏️ Worked Examples — Step by Step
E1
Easy34 + 28 = ?
💡 Add ones first, carry to tens.
👁 Show Solution
4 + 8 = 12 (write 2, carry 1) 3 + 2 + 1 = 6 → 62 ✅ Answer: 62
✅62
E2
MediumSum of first 10 natural numbers (1+2+…+10)?
💡 Use the formula n(n+1)/2.
👁 Show Solution
n(n+1)/2 = 10 × 11 / 2 = 55. ✅ Answer: 55
✅55
E3
ChallengingA shop sold 245, 187, 312, and 98 items in 4 weeks. Total?
💡 Add all four. Round to estimate first if helpful.
👁 Show Solution
245 + 187 = 432 312 + 98 = 410 432 + 410 = 842 ✅ Answer: 842
✅842