[tex]\colorbox{pink}{\boxed{\tt{Step \: by \: Step \: Explanation}}}[/tex]
1. 28 x (-4) ÷ (-8)
Since negative numbers are multiplied by an even number,remove the (-) sign
28 x 4 ÷ 8
A number to be divided is sent to the denominator
28 x 4
---------
8
multiply 28 and 4
112
--------
8
Reduce the fraction to the lowest term
= 14
2. 48 ÷ (-3) ÷ 4 × 5
if you multiply negative numbers by odd numbers,move the (-) sign forward
--(48 ÷ 3 ÷ 4 x 5)
A number to b divided is sent to the denominator
48 x 5
-- --------
3 x 4
Multiply 48 and 5
240
-- ------
3 x 4
Multiply 3 and 4
240
-- -------
12
Reduce the fraction to the lowest term
= -20
3. (-17) + (-19) - 21
Put negative numbers in parentheses
--( 17 + 19 + 21 )
Find the sum
= --57
4. (-10938) - (-4,209)
Simplify Minus
-10938 + 4209
Add -- 10938 and 4209
= -- 6729
[tex]{ \boxed{ \boxed{ \pink{ \text{Answer:}}}}}[/tex]
1. 14
2. --20
3. --57
4. --6729
[tex]\colorbox{pink}{\boxed{\tt{Carry \: on \: learning}}}[/tex]
