Addition Operations With Rational Numbers
8.5 + -3.5
5
5/8 - (-7/2)
33/8 or 4 1/8
write 4/5 as a decimal number
0.8
When we subtract we Keep, Change, _____
Change
100-2.35
97.65
-3/4 + 7/2
11/4 or 2 3/4
-7/8-(-5/6)
-1/24
Change 0.4 to a fraction?
Use place value ...
4/10
When adding with the same signs you ____ and keep the sign
add
-100 - (3.89)
-103.89
2.2 + 4.6
6.8
1.8 - (-3.7)
5.5
what is this as a decimal?
17/50
0.34
When adding with different signs we ____ the numbers and keep the sign of the ______ number
keep, bigger/higher
(-2/3) + 4/5 + 2/3 + (-4/5)+100
100
8.7 + -7.1
1.6
7/4 - (-1/2)
9/4
convert to decimal ...
10/25
0.4
-3/4 and 3/4 are called_____________.
Opposites
100 - 2.58 + 3.9
101.32
1/10 + -1/5
-1/10
(-1.82)-(-7.61)
5.79
What is the sum of 1/2 and (-0.8) in decimal form?
-0.3
This is a 2 part questions
Which is less?
-32+(-400) or -400-(-32)
And give the answer
-32+(-400) is less and it equals -432
(-2.37) + (-100) - (-6.7)
-95.67