7. Topic 7(COLON) Quantitative Reasoning and Study Skills for Mathematics

Lesson 7.2: Estimation, Accuracy And Checking — Quiz

Test your understanding of lesson 7.2: estimation, accuracy and checking with 5 practice questions.

Practice Questions

Question 1

If you estimate the sum of $124$ and $78$, what is the closest rounded estimate?

Question 2

When rounding the number $3.578$ to two significant figures, what is the result?

Question 3

What is the result of checking the work through subtraction in the equation $80 - 35 = 45$?

Question 4

If a student estimates $48.75$ to the nearest ten, what is the rounded value?

Question 5

If you need to evaluate $450 + 193$ by estimating, which of the following is a suitable estimate?