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Adding Three One-Digit Numbers (Sums up to 20)
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To add three numbers, group any two numbers and find their sum. Then, add the third number to the sum obtained.
For example: Let’s calculate 1 + 2 + 4.
First, group 1 and 2 and find their sum.
1 + 2 + 4 = (1 + 2) + 4 = 3 + 4
Now, add the third number to the sum obtained.
3 + 4 = 7
So, 1 + 2 + 4 = 7.
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Help
The correct answer is
Remember :
The smallest number is the one that comes first while counting.
Solution :
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.