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 solutions for rounding off to the nearest thousandth and then performing the indicated operation. 1) Step 1: Round the given numbers to the nearest thousandth. 13.48 ≈ 13.480 4.16 ≈ 4.160 Step 2: Perform the indicated addition. 13.480 + 4.160 = 17.640 The missing number is 17.640. 2) Step 1: Round the given numbers to the nearest thousandth. 7.123 ≈ 7.123 5.6867 ≈ 5.687 (since the fourth decimal digit is 7, round up the third digit) Step 2: Perform the indicated addition. 7.123 + 5.687 = 12.810 The missing number is 12.810. 3) Step 1: Round the given numbers to the nearest thousandth. 14.46 ≈ 14.460 10.67 ≈ 10.670 Step 2: Perform the indicated subtraction. 14.460 - 10.670 = 3.790 The missing number is 3.790. 4) Step 1: Round the given numbers to the nearest thousandth. 9.369 ≈ 9.369 4.1121 ≈ 4.112 (since the fourth decimal digit is 1, keep the third digit as is) Step 2: Perform the indicated addition. 9.369 + 4.112 = 13.481 The missing number is 13.481. 5) Step 1: Round the given numbers to the nearest thousandth. 0.887 ≈ 0.887 0.2845 ≈ 0.285 (since the fourth decimal digit is 5, round up the third digit) Step 2: Perform the indicated addition. 0.887 + 0.285 = 1.172 The missing number is 1.172. 6) Step 1: Round the given numbers to the nearest thousandth. 0.946 ≈ 0.946 0.631 ≈ 0.631 Step 2: Perform the indicated subtraction. 0.946 - 0.631 = 0.315 The missing number is 0.315. 7) Step 1: Round the given numbers to the nearest thousandth. 0.8122 ≈ 0.812 (since the fourth decimal digit is 2, keep the third digit as is) 2.471 ≈ 2.471 Step 2: Perform the indicated addition. 0.812 + 2.471 = 3.283 The missing number is 3.283. 8) Step 1: Round the given numbers to the nearest thousandth. 7.687 ≈ 7.687 5.232 ≈ 5.232 Step 2: Perform the indicated subtraction. 7.687 - 5.232 = 2.455 The missing number is 2.455. 9) Step 1: Round the given numbers to the nearest thousandth. 0.9122 ≈ 0.912 (since the fourth decimal digit is 2, keep the third digit as is) 2.471 ≈ 2.471 Step 2: Perform the indicated addition. 0.912 + 2.471 = 3.383 The missing number is 3.383. 10) Step 1: Round the given numbers to the nearest thousandth. 8.466 ≈ 8.466 0.322 ≈ 0.322 Step 2: Perform the indicated subtraction. 8.466 - 0.322 = 8.144 The missing number is 8.144. That's 2 down. 3 left today — send the next one.