Estimating square roots Quiz
7 questions · easy to harder · Foundations · score and step-by-step answers
How it works
- 7 questions, about 14 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 4 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. No calculator: work it out on paper.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Estimate √10 to the nearest tenth- A) 6
- B) 0.32
- C) 32
- D) 3.2
2 Question 2
Estimate √26 to the nearest tenthType the answer.
3 Question 3
Estimate √35 to the nearest tenth- A) 59
- B) 5.9
- C) 1
- D) 0.59
4 Question 4
Estimate √50 to the nearest tenthType the answer.
5 Question 5
Estimate √65 to the nearest tenth- A) 16
- B) 8.1
- C) 0.81
- D) 81
6 Question 6
Estimate √80 to the nearest tenthType the answer.
7 Question 7
Estimate √99 to the nearest tenth- A) 99
- B) 0.99
- C) 1
- D) 9.9