find sum of 21 natural numbers
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Answered by
1
Step-by-step explanation:
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+
20+21=231
Answered by
2
1 + 2 + 3 +4 + 5 + 6 +7 +8 +9 +10 + 11 +12 + 13 +14 +15 +16 +17 +18 +19+20 +21
= 231
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