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* 1. Using PEMDAS, solve: 28 ÷ 7 × 13 – 11

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* 2. Using PEMDAS, solve: 2³ + 19 – 3 × 4

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* 3. Using PEMDAS, solve: (4+3) × [6−(2+1)]

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* 4. Using PEMDAS, solve: 17 × (48 ÷ 12) + 7²

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