Understanding Basic Number Concepts

This video covers plotting numbers on a number line, identifying points, reading temperatures, and understanding opposites. It includes activities on drawing number lines, finding distances from zero, and solving equations. The lesson concludes with a summary and homework instructions.

Which of the following numbers could be located between 2 and 3 on a number line?

• 1.5

• 2.5

• 3.5

• 4.5

If a thermometer shows a temperature of -2.5°C, what would be the correct reading if the liquid line is above -2?

• -3.5°C

• 0.5°C

• -2.5°C

• -1.5°C

What is the opposite of the number 4 on a number line?

• -8

• 0

• 4

• -4

Which number is the same distance from zero as -7?

• -7

• 7

• 0

• -14

What is the result of dividing 23 by 8 in fractional form?

• 2.875

• 23/8

• 8/23

• 3/2

How would you express 3/2 as a decimal?

• 2.5

• 3.5

• 0.75

• 1.5

What is the opposite of -10.4?

• -10.4

• 10.4

• 0

• 20.8

If you plot -1.5 on a number line, where would it be located?

• Between 2 and 3

• Between 1 and 2

• At 0

• Between -1 and -2

Which of the following is a rational number?

• √2

• π

• 3/4

• e

How many centimeters are there in a foot if 6 inches equals 15.24 cm?

• 30.48 cm

• 15.24 cm

• 60.96 cm

• 45.72 cm