There are 42 eggs in a basket, Joan adds 8 more. How many eggs are there in the basket?
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Solution
Number of eggs in the basket \(=42\)
Number of eggs Joan adds \(=8\)
Total number of eggs in the basket \(=42+8\)
Solving the problem through stand algorithm:Now, solving the problem through mental math ability by making a ten:
\(42 + 8\)
\(= (40 + 2) + 8\)
\(= 40 + (2 + 8)\)
\(= 40 + 10 = 50\)
Therefore, there are 50 eggs in the basket.