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 calculations for questions 2 and 3: 2. Calculate the following. a) Step 1: Add the decimal numbers. 7.123 + 12.567 = 19.690 The answer is 19.69 b) Step 1: Subtract the decimal numbers. 65.34 - 1.286 = 64.054 The answer is 64.054 c) Step 1: Subtract the decimal numbers. 987.543 - 32.431 = 955.112 The answer is 955.112 3. Calculate the following and then round off your answer to two decimal places: a) Step 1: Add the decimal numbers. 32.452 + 9.543 + 0.5409 = 42.5359 Step 2: Round off to two decimal places. The third decimal digit is 5, so round up the second decimal digit. 42.5359 ≈ 42.54 The answer is 42.54 b) Step 1: Perform the addition and subtraction from left to right. 98.4311 - 88.31 + 54.1034 10.1211 + 54.1034 = 64.2245 Step 2: Round off to two decimal places. The third decimal digit is 4, so keep the second decimal digit as is. 64.2245 ≈ 64.22 The answer is 64.22 c) Step 1: Perform the subtractions from left to right. 0.45 - 0.003 - 0.001 0.447 - 0.001 = 0.446 Step 2: Round off to two decimal places. The third decimal digit is 6, so round up the second decimal digit. 0.446 ≈ 0.45 The answer is 0.45 3 done, 2 left today. You're making progress.