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
Here are the answers for Question 3: 3.1.1) State whether the following number sentence is true or false: 9 - 3 = 3 - 9 Step 1: Calculate the left side of the equation. 9 - 3 = 6 Step 2: Calculate the right side of the equation. 3 - 9 = -6 Step 3: Compare the results from both sides. Since 6 ≠ -6, the statement is false. False 3.1.2) State whether the following number sentence is true or false: 29 - 12 = (20 + 9) - 12 Step 1: Calculate the left side of the equation. 29 - 12 = 17 Step 2: Calculate the right side of the equation. First, perform the operation inside the parentheses. (20 + 9) - 12 = 29 - 12 Step 3: Complete the calculation for the right side. 29 - 12 = 17 Step 4: Compare the results from both sides. Since 17 = 17, the statement is true. True Last free one today — make it count tomorrow, or type /upgrade for unlimited.