What decimal number does each letter represent in the number line below? Class 7

What decimal number does each letter represent in the number line below? Class 7

Question 1.

What decimal number does each letter represent in the number line below?

Solution:

a = 6.45, b = 6.55, and

c = [latex]\frac {6.5+6.55}{2}[/latex] = 6.525

Question 2.

Arrange the following quantities in descending order: Class 7

(a) 11.01, 1.011, 1.101, 11.10, 1.01

(b) 2.567, 2.675, 2.768, 2.499, 2.698

(c) 4.678 g, 4.595 g, 4.600 g, 4.656 g, 4.666 g

(d) 33.13 m, 33.31 m, 33.133 m, 33.331 m, 33.313 m

Solution:

(a) 11.10, 11.01, 1.101, 1.011, 1.01

(b) 2.768, 2.698, 2.675, 2.567, 2.499

(c) 4.678 g, 4.666 g, 4.656 g, 4.600 g, 4.595 g

(d) 33.331 m, 33.313 m, 33.31 m, 33.133 m, 33.13 m

Question 3.

Using the digits 1,4,0,8, and 6 make: Class 7

(a) the decimal number closest to 30

(b) the smallest possible decimal number between 100 and 1000.

Solution:

(a) 40.168

(b) 104.68