89. Which of the following word problems will second-grade students be most likely to solve using addition?
Answer: B
Second-grade students will most likely solve the problem about the school bus using addition.
This word problem involves a straightforward addition scenario where students are asked to find the total number of students on the bus after more students board. It is an appropriate level of complexity for second graders and clearly requires the use of addition.
A) Mr. John has 25 stickers to distribute equally among five students. How many stickers will each student get?
This problem is based on division rather than addition, as it requires determining how many stickers each student receives when the total is shared. Second graders would need to apply division concepts, which may be more advanced for their level.
B) There are 28 students on a school bus. If 12 more students get on the bus, how many students will be on the bus?
This problem is a clear application of addition, asking students to sum the current number of students with those getting on the bus. It is a straightforward and relatable scenario for second-graders, making it the most suitable choice for solving using addition.
C) A carton has 18 eggs, but 7 of them are cracked. How many eggs in the carton are not cracked?
This question requires subtraction to determine how many uncracked eggs remain in the carton. While it is a relevant math concept, it does not involve addition, and thus is not the best fit for this question.
D) Jack gave Chris 12 markers, and now Chris has 19 markers. How many markers did Chris have before Jack gave him 12?
This problem involves subtraction, as it requires students to find the initial amount Chris had before receiving more markers. It is a reverse operation scenario, which is suitable but not aligned with the focus on addition in this question.
Conclusion
The word problem regarding the school bus is the only one that directly involves an addition operation, making it the most appropriate for second-grade students. The other options either require division or subtraction, which do not align with the objective of using addition. Therefore, option B stands out as the clear choice for solving through addition.