When a student estimates an answer to an addition problem such as 432 + 324 = by converting it to 400 + 300 =, that student is using:
A) the rounding up strategy.
B) the rounding down strategy.
C) the compatible numbers strategy.
D) the front-end estimation strategy.
Correct Answer:
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Q2: The NCTM's Principles and Standards for School
Q3: Many students who are successful in mastering
Q4: Which of the following is NOT a
Q5: Understanding the big idea of _ means
Q6: _ includes the skills of addition, subtraction,
Q8: When a students solves an unknown multiplication
Q9: To _ is to approximate an outcome
Q10: When a teacher identifies the prerequisite and
Q11: When poor language skills interfere with a
Q12: By applying _ operations, students can check
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