This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
christina, let's knock this out. Here are the solutions for the mental maths problems: 1. Step 1: Multiply 2 × 1. 2 × 1 = 2 Step 2: Add 3 to the result. 2 + 3 = 5 The answer is 5 2. Step 1: Multiply 2 × (-1). 2 × (-1) = -2 Step 2: Add 3 to the result. -2 + 3 = 1 The answer is 1 3. Step 1: Multiply 0.2 × 1. 0.2 × 1 = 0.2 Step 2: Subtract 3 from the result. 0.2 - 3 = -2.8 The answer is -2.8 4. Step 1: Multiply 4.5 × 1. 4.5 × 1 = 4.5 Step 2: Add 3 to the result. 4.5 + 3 = 7.5 The answer is 7.5 5. Step 1: Multiply (1)/(2) × 1. (1)/(2) × 1 = (1)/(2) Step 2: Subtract 3 from the result. (1)/(2) - 3 = (1)/(2) - (6)/(2) = (1-6)/(2) = (-5)/(2) The answer is -(5)/(2) 6. Step 1: Multiply 2 × 1. 2 × 1 = 2 Step 2: Add 0.5 to the result. 2 + 0.5 = 2.5 The answer is 2.5 7. Step 1: Multiply 2 × (3)/(2). 2 × (3)/(2) = 3 Step 2: Add 3 to the result. 3 + 3 = 6 The answer is 6 8. Step 1: Multiply 2 × (5)/(2). 2 × (5)/(2) = 5 Step 2: Add (7)/(8) to the result. 5 + (7)/(8) = (40)/(8) + (7)/(8) = (40+7)/(8) = (47)/(8) The answer is (47)/(8) 9. Step 1: Multiply -3 × 1. -3 × 1 = -3 Step 2: Subtract 3 from the result. -3 - 3 = -6 The answer is -6 10. Step 1: Multiply 2 × 100. 2 × 100 = 200 Step 2: Add 3 to the result. 200 + 3 = 203 The answer is 203 Send me the next one 📸