Negative Times a Negative Number
Introduction :
Negative Number
Negative number is a real number less than zero that is in a XY axis graph, left side of zero are negative numbers. Zero is neither negative nor positive number that is no sign for zero. Negative number is always indicated by minus (-) sign before the number like -2, -8, -`sqrt(2)` , -`4/3` . Positive number is real number greater than zero where positive sign(+) is used before the number otherwise we need not use plus sign.
For multiplication, a negative times a negative number always gives a positive number. When a negative times a negative number, just multiply the two numbers and keep the positive sign before the number or need not use sign.
A negative times a negative number-Problems
Example 1:
Find the solution for negative times a negative number: (- 6) x (-6)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the multiplication.
(- 6) x (-6) = +36 or 36
Example 2:
Find the solution for negative times a negative number: (- 25) x (-10)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
(- 25) x (-10) = + 250
Example 3:
Find the solution for negative times a negative number: (- 11) x (- 89)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
(- 11) + (-89) = + 979 or 979
Example 4:
Find the solution for decimal negative times a negative number:(- 25.02) x (-6)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
(- 25.02) x (-6) = +150.12 or 150.12
Example 5:
Find the solution for negative decimal times a negative decimal number:(- 7.25) x (-35.02)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
(- 7.25) x (-35.02) = +253.895 or 253.895
Example 6:
Find the solution for negative fraction times a negative fraction number:`(- 2/3 )` x `(- 5/8)`
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
`(- 2/3)` x `(-5/8)` = `2/3` x `5/8` = `10/24` .
A negative times a negative number-Practice problems
Find the solution negative times a negative number for the following problems and check the answers.
Problem 1:
(- 10) x (-15)
Answer: 150
Problem 2:
(-0.5) x (-1.2)
Answer: +0.6
Problem 3:
(-8.523) x (-5)
Answer: 42.615
Problem 4:
(-15) x `(- 5/7) `
Answer: + `75/7`
Problem 5:
(-21X) x (-5X)
Answer: + 105X2.
Problem 6:
`(-25/8)` x `(-6/7) `
Answer: + `150/56`
Problem 7:
`((-15X)/8) ` x `((-3x)/2)`
Answer: + `(45X^2)/16` .
I like to share this Decimal Number Lines and Positive and Negative Numbers with you all through my blog.
Negative Number
Negative number is a real number less than zero that is in a XY axis graph, left side of zero are negative numbers. Zero is neither negative nor positive number that is no sign for zero. Negative number is always indicated by minus (-) sign before the number like -2, -8, -`sqrt(2)` , -`4/3` . Positive number is real number greater than zero where positive sign(+) is used before the number otherwise we need not use plus sign.
For multiplication, a negative times a negative number always gives a positive number. When a negative times a negative number, just multiply the two numbers and keep the positive sign before the number or need not use sign.
A negative times a negative number-Problems
Example 1:
Find the solution for negative times a negative number: (- 6) x (-6)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the multiplication.
(- 6) x (-6) = +36 or 36
Example 2:
Find the solution for negative times a negative number: (- 25) x (-10)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
(- 25) x (-10) = + 250
Example 3:
Find the solution for negative times a negative number: (- 11) x (- 89)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
(- 11) + (-89) = + 979 or 979
Example 4:
Find the solution for decimal negative times a negative number:(- 25.02) x (-6)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
(- 25.02) x (-6) = +150.12 or 150.12
Example 5:
Find the solution for negative decimal times a negative decimal number:(- 7.25) x (-35.02)
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
(- 7.25) x (-35.02) = +253.895 or 253.895
Example 6:
Find the solution for negative fraction times a negative fraction number:`(- 2/3 )` x `(- 5/8)`
Solution:
Here both the numbers are negative numbers.
So multiply(x) both the number and put the positive sign before the product.
`(- 2/3)` x `(-5/8)` = `2/3` x `5/8` = `10/24` .
A negative times a negative number-Practice problems
Find the solution negative times a negative number for the following problems and check the answers.
Problem 1:
(- 10) x (-15)
Answer: 150
Problem 2:
(-0.5) x (-1.2)
Answer: +0.6
Problem 3:
(-8.523) x (-5)
Answer: 42.615
Problem 4:
(-15) x `(- 5/7) `
Answer: + `75/7`
Problem 5:
(-21X) x (-5X)
Answer: + 105X2.
Problem 6:
`(-25/8)` x `(-6/7) `
Answer: + `150/56`
Problem 7:
`((-15X)/8) ` x `((-3x)/2)`
Answer: + `(45X^2)/16` .
I like to share this Decimal Number Lines and Positive and Negative Numbers with you all through my blog.