Estimation and Approximation – Quiz

Estimation and Approximation – Quiz

Instructions

  • There are 25 questions in this quiz. Please read each question carefully.
  • Use the feedback to verify your answers after selecting a choice.

Question 1

Round 94,721 to the nearest 1000.





Question 2

Round 578,942,342 to the nearest million.





Question 3

Round 678,450 to the nearest 1000.





Question 4

Round 0.048342 to 3 decimal places.





Question 5

Round 194.4532 to the nearest whole number.





Question 6

Round 0.00403093 to 3 significant figures.





Question 7

Round 0.0888991 to 4 significant figures.





Question 8

Estimate the value of 603×31 by rounding to the nearest tens.





Question 9

Estimate the value of 742,998÷709 by rounding both numbers to the nearest hundred.





Question 10

Estimate the value of 24,638+44,282 by rounding both numbers to the nearest thousand.





Question 11

Estimate the value of 44,829×868 by rounding both numbers to the nearest hundred.





Question 12

Estimate the value of 679,348÷723 by rounding both numbers to the nearest hundred.





Question 13

Estimate the value of 908,629÷0.0722 by rounding both numbers to one decimal place.





Question 14

Estimate the value of (60.32.88)÷4.94 by rounding the numbers to one decimal place.





Question 15

Estimate the value of 20.1×698.319.87×5.28 by rounding the numbers to one decimal place.





Question 16

Estimate the value of 8.8×20.38.996−6.03 by rounding the numbers to one decimal place.





Question 17

In a cinema, there are 39 rows, and each row has 28 seats. Each cinema ticket costs £9.75. Estimate the total income from ticket sales.





Question 18

Eleanor wants to buy 6 rubbers and 4 pencils. The rubbers cost £0.94 each, and the pencils cost 52p each. Estimate how much this will cost Eleanor in £.





Question 19

Estimate the value of 54,829×98.2(734.4÷23.3) by rounding to the nearest whole number.





Question 20

The population of a town increased from 42,375 to 58,760 in 5 years. Estimate the average annual growth rate by rounding the population numbers to the nearest thousand.





Question 21

A car travels 276 miles using 15.6 gallons of fuel. Estimate the fuel efficiency in miles per gallon by rounding both numbers to one decimal place.





Question 22

Estimate the square root of 872 by finding the nearest perfect square.





Question 23

Estimate the value of 128.4×512.363.9+54.8 by rounding the numbers to the nearest whole number.





Question 24

A company produces 125 gadgets per day. Each gadget takes 4.2 hours to produce. Estimate how many hours the company will spend producing gadgets over 30 days.





Question 25

Estimate the sum of 25.8+73.4+109.6+37.9 by rounding to the nearest whole number.