Question

There are 42 adult wolves and 47 pups. Select the correct option to complete the steps and find the total number of wolves.

• A. 47 = 7 + 4, 42 = 2 + 20; Total = 88
• B. 47 = 40 + 7, 42 = 40 + 2; Total = 89
  
• C. 47 = 40 + 8, 42 = 4 + 2; Total = 89
• D. 42 = 2 + 2, 47 = 5 + 2; Total = 88
  

Answer 1

The correct option is B 47 = 40 + 7, 42 = 40 + 2; Total = 89


Detailed step-by-step solution:
47 when decomposed or broken apart gives 40 and 7. 47 = 40 + 7
42 when decomposed or broken apart gives 40 and 2. 42= 40 + 2
Step 2: 80 + 9 = 89
Total number of wolves = 47 + 42 = 89
89 has 8 Tens and 9 Ones.

Hence, Option A is correct.