Question

-3.4 is a number on the real number line.if we substract 1 from this number then the new number will be

Answer 1

-4.4 will be the new number.

Answer 2

if 1 is subtracted from -3.4 then new number is -4.4

Given:

• -3.4 is a number on the real number line
• 1 is subtracted from -3.4

To Find:

• new number

Solution:

• Numbers with a negative sign are less than zero
• Right of zero represented by ‘+’ sign and to the left of zero represented by ‘–’ sign.  
• + sign numbers can be denoted as simply numbers  
• On a number line the number increases as we move to the right and decreases as we move to the left.  

As 1 need to be subtracted from -3.4 hence we need to go 1 on the left side of 3.4

on going 1 left  (or 10 steps of 0.1) of -3.4 , number is -4.4

Hence if 1 is subtracted from -3.4 then new number is -4.4