Solve the following arithmetic problems: a) -52 + 16; b) -102 - 206; c) 250 - (-30) + (-20); d) 31 - 19 + 28 - 12; e) 123 - 345 + 678; f) 47 - 78 - (-64); g) -100 - 150 + 0; h) 56 - (-50) - 40

Welcome back unabantu — missed you this week. Here are the calculations: 1. Calculate. a) Step 1: Add the numbers. -52 + 16 = -36 The answer is -36. b) Step 1: Subtract the numbers. -102 - 206 = -308 The answer is -308. c) Step 1: Simplify the signs. 250 - (-30) + (-20) = 250 + 30 - 20 Step 2: Perform the additions and subtractions from left to right. 250 + 30 - 20 = 280 - 20 = 260 The answer is 260. d) Step 1: Perform the additions and subtractions from left to right. 31 - 19 + 28 - 12 = 12 + 28 - 12 Step 2: Continue performing operations from left to right. 12 + 28 - 12 = 40 - 12 = 28 The answer is 28. e) Step 1: Perform the additions and subtractions from left to right. 123 - 345 + 678 = -222 + 678 Step 2: Complete the addition. -222 + 678 = 456 The answer is 456. f) Step 1: Simplify the signs. 47 - 78 - (-64) = 47 - 78 + 64 Step 2: Perform the additions and subtractions from left to right. 47 - 78 + 64 = -31 + 64 = 33 The answer is 33. g) Step 1: Perform the additions and subtractions from left to right. -100 - 150 + 0 = -250 + 0 Step 2: Complete the addition. -250 + 0 = -250 The answer is -250. h) Step 1: Simplify the signs. 56 - (-50) - 40 = 56 + 50 - 40 Step 2: Perform the additions and subtractions from left to right. 56 + 50 - 40 = 106 - 40 = 66 The answer is 66. i) Step 1: Perform the additions and subtractions from left to right. 920 - 10 - 800 = 910 - 800 Step 2: Complete the subtraction. 910 - 800 = 110 The answer is 110. j) Step 1: Perform the subtractions from left to right. 10 - 25 - 36 = -15 - 36 Step 2: Complete the subtraction. -15 - 36 = -51 The answer is -51. k) Step 1: Simplify the signs. -11 + 23 - 46 + (-12) = -11 + 23 - 46 - 12 Step 2: Perform the additions and subtractions from left to right. -11 + 23 - 46 - 12 = 12 - 46 - 12 Step 3: Continue performing operations from left to right. 12 - 46 - 12 = -34 - 12 = -46 The answer is -46. l) Step 1: Simplify the signs. 314 - (-25) + 1 - 129 = 314 + 25 + 1 - 129 Step 2: Perform the additions and subtractions from left to right. 314 + 25 + 1 - 129 = 339 + 1 - 129 Step 3: Continue performing operations from left to right. 339 + 1 - 129 = 340 - 129 = 211 The answer is 211. 2. Word problems. a) What is 258 plus 329? Step 1: Add the numbers. 258 + 329 = 587 The answer is 587. b) What is 258 plus -319? Step 1: Add the numbers. 258 + (-319) = 258 - 319 = -61 The answer is -61. c) What is 1 023 minus 648? Step 1: Subtract the numbers. 1023 - 648 = 375 The answer is 375. d) What is 648 minus 1 023? Step 1: Subtract the numbers. 648 - 1023 = -375 The answer is -375. Drop the next question 📸