178.5*21
asked by guest on Jan 28, 2025 at 2:37 pm
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MathBot Answer:
178.5⋅21=74972=3748.5178.5 \cdot 21 = \frac{7497}{2} = 3748.5178.5⋅21=27497=3748.5
178.5⋅21=(178+510)⋅21=(178+12)⋅21=3572⋅21=74972\begin{aligned}178.5 \cdot 21& = \left(178 + \frac{5}{10}\right) \cdot 21\\& = \left(178 + \frac{1}{2}\right) \cdot 21\\& = \frac{357}{2} \cdot 21\\& = \frac{7497}{2}\end{aligned}178.5⋅21=(178+105)⋅21=(178+21)⋅21=2357⋅21=27497