What is the sum of 7 and 8?

What is the sum of 7 and 8?

• A. 13
• B. 14
• C. 15
• D. 16

Answer: (C)

The sum of 7 and 8 can be found by combining the two numbers. When you add 7 to 8, you can think of it in various ways. One approach is to count forward from 7: starting at 7, you would say 8 (add one) is 8, 9 (add two) is 9, 10 (add three) is 10, 11 (add four) is 11, 12 (add five) is 12, 13 (add six) is 13, 14 (add seven) is 14, and finally, adding the last number 15 (add eight). Thus, when you finish this counting process, you arrive at 15 as the total, which evidences that when you add 7 and 8 together, you get 15. This addition is also fundamental for building number sense, where understanding how numbers combine directly relates to students’ skills in future math concepts.

The sum of 7 and 8 can be found by combining the two numbers. When you add 7 to 8, you can think of it in various ways. One approach is to count forward from 7: starting at 7, you would say 8 (add one) is 8, 9 (add two) is 9, 10 (add three) is 10, 11 (add four) is 11, 12 (add five) is 12, 13 (add six) is 13, 14 (add seven) is 14, and finally, adding the last number 15 (add eight).

Thus, when you finish this counting process, you arrive at 15 as the total, which evidences that when you add 7 and 8 together, you get 15. This addition is also fundamental for building number sense, where understanding how numbers combine directly relates to students’ skills in future math concepts.