1. **Stating the problem:** We are given two tables with columns B1 to B10 and C1 to C10, each with numerical values including positive and negative integers, and totals at the bottom. The task is to analyze or summarize these tables and provide answers based on the data. 2. **Understanding the data:** Each table has columns labeled B1 to B10 or C1 to C10, with rows of numbers and a total row at the bottom. The totals for the first table are 293, 291, and 167, and for the second table, the total is 10. 3. **Interpreting the totals:** The totals likely represent sums of the columns or some aggregate measure. We can verify by summing the values in each column. 4. **Calculating sums for the first table (B1 to B10):** - Sum B1: $69 + 20 + 31 + 74 + 85 + 16 = 295$ - Sum B2: $25 + 83 + 42 + 90 + 17 + 34 = 291$ - Sum B3: $48 + 50 - 17 + 83 - 92 + 65 = 137$ - Sum B4: $19 + 36 + 40 + 97 + 53 + 28 = 273$ - Sum B5: $85 + 70 + 24 - 19 + 46 - 53 = 153$ - Sum B6: $32 + 18 + 69 + 80 + 27 + 91 = 317$ - Sum B7: $94 + 86 - 70 + 13 + 47 - 28 = 142$ - Sum B8: $10 + 52 + 23 + 84 + 37 + 61 = 267$ - Sum B9: $57 + 13 - 40 + 95 - 62 + 84 = 147$ - Sum B10: $26 + 47 + 19 + 30 + 71 + 58 = 251$ 5. **Calculating sums for the second table (C1 to C10):** - Sum C1: $70 + 18 + 23 + 69 + 34 + 85 = 299$ - Sum C2: $39 + 52 + 68 + 10 + 27 + 43 = 239$ - Sum C3: $64 + 71 + 39 - 57 + 16 - 80 = 53$ - Sum C4: $52 + 63 + 45 + 19 + 70 + 36 = 285$ - Sum C5: $73 + 40 - 25 + 84 - 61 + 59 = 170$ - Sum C6: $20 + 81 + 67 + 15 + 43 + 92 = 318$ - Sum C7: $84 + 63 - 20 + 47 + 91 - 75 = 190$ - Sum C8: $35 + 70 + 91 + 68 + 24 + 19 = 307$ - Sum C9: $20 + 93 - 74 + 51 - 38 + 67 = 119$ - Sum C10: $31 + 54 + 83 + 70 + 49 + 15 = 302$ 6. **Summary:** The totals given in the tables do not match the sums calculated, indicating the totals might represent something else or partial sums. 7. **Skill Exercise:** The number 12345 is given with "9 Times". This might indicate multiplication or repetition. 8. **Final answers:** - Sum of B columns (approximate): B1=295, B2=291, B3=137, B4=273, B5=153, B6=317, B7=142, B8=267, B9=147, B10=251 - Sum of C columns (approximate): C1=299, C2=239, C3=53, C4=285, C5=170, C6=318, C7=190, C8=307, C9=119, C10=302 - Number 12345 repeated 9 times or multiplied by 9 (if multiplication): $12345 \times 9 = 111105$ These are the main numerical answers extracted from the data provided.