Calculator Usage and Problem Solving

The video tutorial explains how to solve a problem involving the calculation of students wearing helmets correctly. It involves two main steps: first, determining the number of students wearing helmets, and second, calculating how many wear them correctly. The process includes multiplying fractions and dividing to find the approximate number of students. The tutorial also demonstrates how to perform these calculations using a calculator, ensuring the results are rounded to the nearest student.

What fraction of children aged 4 to 16 wear a helmet when riding a bike?

• Four fifths

• One half

• Three fifths

• Two thirds

How many students wear a helmet if a school has 2,436 students?

• 1,800

• 1,462

• 1,200

• 1,500

What fraction of helmet-wearing students wear their helmets correctly?

• Five sixths

• Three fourths

• Eleven fifteenths

• Nine tenths

What is the approximate number of students who wear their helmets correctly?

• 1,020

• 1,100

• 1,050

• 1,072

What is the remainder when dividing 80,388 by 75?

• 25

• 50

• 75

• 63

How can the division of large numbers be simplified?

• By using a calculator

• By estimating

• By using a computer

• By using a ruler

What is the first step in solving the problem using a calculator?

• Divide the total number of students by 5

• Multiply three fifths by 2,436

• Add the total number of students

• Subtract the incorrect helmet wearers

What is the decimal equivalent of 7,308 divided by 5?

• 1,461.6

• 1,600.6

• 1,500.5

• 1,400.4

What is the final step in verifying the solution using a calculator?

• Subtract the remainder

• Round to the nearest student

• Add the fractions

• Multiply the result by 15

What is the purpose of using a calculator in this problem?

• To check the accuracy of the manual calculation

• To find the total number of students

• To determine the number of students not wearing helmets

• To calculate the average age of students