The Language of Algebra
Evaluate:
4[25/(2+3)]
20
Add the opposite
-30 - 65 = ?
-95
(2/5) + (3/10)
Add and simplify
7/10
(r^2)(r^4)=
r^8
Write a numerical expression:
The number of soccer players on each of 5 teams if there are 35 players
35 / 5
What is the rule for adding numbers with the SAME sign?
Add their absolute values and use the same sign
-4 + 52
48
Write 5/12 as a decimal
0.4166...
(10^2)/(10^5) =
10^-3
Evaluate:
3[6+(6-2)]
30
What's the rule for adding integers with DIFFERENT signs?
Subtract their absolute values and take the sign of the greater absolute value.
35 x -2 = ?
-70
Write 5.875 as a mixed number. Simplify.
5 7/8
Put this in scientific notation:
.00064
6.4 x 10^-4
Evaluate if a=4, b=8, and c=11
3a + 4b - c
33
When you multiply two of the same signs, your answer will be ________________.
-14 / -2 = ?
7
(-9/12)(-2/3)=
Simplify.
18/36= 1/2
Subtract.
(2.78 x 10^5) - (46,500)
2.315 x 10^5
Name the property shown by this statement:
3 x (5 x 2) = (3 x 5) x 2
Associative property of multiplication
When you divide two DIFFERENT signs, the answer will be ________________.
Negative
40 + (-8)
32
6 3/8 divided by -4 1/4
Simplify.
51/34= 3/2
Multiply. Write your answer in scientific notation.
(7.57 x 10^2)(1.10 x 10^5)
8.327 x 10^7