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
Hey Ela — ready when you are. Here are the solutions to the problems: 1. Find the sum of the following numbers by suitable rearrangement. i) 715 + 250 + 335 Step 1: Group numbers that sum to a multiple of 10 or 100. (715 + 335) + 250 Step 2: Perform the addition. 1050 + 250 = 1300 ii) 829 + 106 + 244 + 121 Step 1: Group numbers that sum to a multiple of 10 or 100. (829 + 121) + (106 + 244) Step 2: Perform the additions. 950 + 350 = 1300 iii) 488 + 761 + 512 + 239 Step 1: Group numbers that sum to a multiple of 10 or 100. (488 + 512) + (761 + 239) Step 2: Perform the additions. 1000 + 1000 = 2000 2. Do the subtraction sums and check your answer by suitable addition. i) 70,546 - 56,924 Step 1: Perform the subtraction. 70,546 - 56,924 = 13,622 Step 2: Check the answer by adding the result to the subtrahend. 13,622 + 56,924 = 70,546 The answer is correct. 13,622 ii) 81,329 - 76,408 Step 1: Perform the subtraction. 81,329 - 76,408 = 4,921 Step 2: Check the answer by adding the result to the subtrahend. 4,921 + 76,408 = 81,329 The answer is correct. 4,921 3. In the sums given below replace the * with suitable digits. i) Step 1: Solve for the units column: 5 + 9 = 14. So, the last * is 4, carry over 1. Step 2: Solve for the tens column: 7 + 6 + 1 (carry over) = 14. So, the second to last * is 4, carry over 1. Step 3: Solve for the hundreds column: + 5 + 1 (carry over) = 9. So, + 6 = 9 * = 3. Step 4: Solve for the thousands column: 2 + = 7. So, = 5. The completed sum is: c 2\,3\,7\,5 \\ + 5\,5\,6\,9 \\ 7\,9\,4\,4 \\ The missing digits are 3, 5, 4, 4. ii) Step 1: Solve for the units column: + 8 = 0 (meaning 10). So, = 2, carry over 1. Step 2: Solve for the tens column: + 6 + 1 (carry over) = 2 (meaning 12). So, + 7 = 12 * = 5, carry over 1. Step 3: Solve for the hundreds column: + 4 + 1 (carry over) = 0 (meaning 10). So, + 5 = 10 * = 5, carry over 1. Step 4: Solve for the thousands column: + 2 + 1 (carry over) = 8. So, + 3 = 8 * = 5. The completed sum is: c 5\,5\,5\,2 \\ + 2\,4\,6\,8 \\ 8\,0\,2\,0 \\ The missing digits are 5, 5, 5, 2. 4. Shanu deposited ₹ 1256 in his bank account. Later, he withdrew ₹ 696. How much money was left in his account? Step 1: Identify the initial amount and the withdrawn amount. Initial amount = ₹ 1256 Withdrawn amount = ₹ 696 Step 2: Subtract the withdrawn amount from the initial amount to find the remaining balance. 1256 - 696 = 560 The money left in his account is ₹ 560. What's next?