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.
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You're on a roll — Let's check these addition problems! Section 2: Add a) Add 359739 + 64406 + 5240 + 452. Step 1: Align the numbers by place value and add. 359739 \\ 64406 \\ 5240 \\ + 452 \\ 429837 The student's answer is ✅ Correct. The sum is 429837. b) Add 468839 + 86603 + 54345. Step 1: Align the numbers by place value and add. 468839 \\ 86603 \\ + 54345 \\ 609787 The student's answer is ✅ Correct. The sum is 609787. c) Add 89784 + 461889 + 236. Step 1: Align the numbers by place value and add. 89784 \\ 461889 \\ + 236 \\ 551909 The student's answer is ✅ Correct. The sum is 551909. d) Add 20080 + 5888 + 89899. Step 1: Align the numbers by place value and add. 20080 \\ 5888 \\ + 89899 \\ 115867 The student's answer is ✅ Correct. The sum is 115867. Section 3: Add a) Add 738046 + 8978 + 809. Step 1: Align the numbers by place value and add. 738046 \\ 8978 \\ + 809 \\ 747833 The student's answer is ✅ Correct. The sum is 747833. b) Add 457038 + 808 + 76008 + 92. Step 1: Align the numbers by place value and add. 457038 \\ 808 \\ 76008 \\ + 92 \\ 533946 The student's answer is ✅ Correct. The sum is 533946. c) Add 108897 + 9890 + 7538643 + 257680. Step 1: Align the numbers by place value and add. 108897 \\ 9890 \\ 7538643 \\ + 257680 \\ 7915110 The student's answer is ❌ Incorrect. The correct sum is 7915110. d) Add 352452 + 46732 + 2698 + 909 + 99. Step 1: Align the numbers by place value and add. 352452 \\ 46732 \\ 2698 \\ 909 \\ + 99 \\ 402890 The student's answer is ✅ Correct. The sum is 402890. What's next?