Subtracting Ex
-9 - 3 = ?
-12
-9 + 6.5 = ?
-2.5
What is the first step in subtracting according to the slide
Keep the sign of the first number the same
7.6 - 5 = ?
2.6
-54 + 3
-51
What is the first step in adding rational numbers ?
Have common denominators.
-3 - -6
3
89.87 + -100
-10.13
What is the last step in subtracting and adding rational numbers ?
Simplify
14.5 - -26 = ?
-40.5
65 + -97
-32
What should you do acording to step 3 in subtracting rational numbers.
Change the sign of the second number to the opposite, positive becomes negative, and negative becomes positive.
-75.6 - 87.07
-162.67
.354 + 1/2 = ?
.854