Notes
Conversions
Add/Sub
Mult/Div
Exp/Equ
100
What is the first thing you do when you divide by decimals?
The first thing you do when you divide by decimals is move the place value or decimal.
100
Convert 2.1 into a fraction.
2.1= 2 1/10
100
2.1+1.2
2.1+1.2= 3.3
100
2.13 X 1.23
2.13 X 1.23= 2.6199
100
Solve: x-2.1=4.6
x-2.1 =4.6 +2.1 +2.1 X= 6.7
200
What property is expressed in the equation? 3.1+2.1 = 2.1+3.1
The property expressed in the equation is the Communative Property.
200
Convert 57/100 into a decimal.
57/100 = .57
200
5.23-2.15
5.23-2.15= 3.08
200
3.12 X 4.1
3.12 X 4.1 =12.792
200
1.2x= 2.5
x = 2.083
300
What is the order of operations?
Brackets, Parenthesis, Exponents, Multiplication, Division, Addition, or Subtraction
300
Convert 3 345/1000 into a decimal.
3 345/1000 = 3.345
300
23.452 -12.41
23.452- 12.41=11.042
300
12.123 X-1.2
12.123 X -1.2= -14.5476
300
x/1.56- 1.22=5.28
x=10.1400
400
What are two differences between equations and expressions?
equal sign order of operations inverse operations simplify value for variable is given solve find the value of the variable
400
Convert -3.4 into a decimal. Simplify your answer.
-3.4 = -3 4/10 = -3 2/5
400
-3.562 +4
-3.562 + 4 =.438
400
-3.546 X -1.2
-3.546 X -1.2 = 4.2552
400
2x +4.234=-3.23
x= 3.732
500
Which terms are like terms in the following expression? 4.234y + 3.12 -4.23y -1.2
Like Terms: 4.234Y and -4.23Y Like Terms: 3.12 and -1.2
500
convert 35/ 6 into a decimal.
35/ 6 = 5.833...
500
-45.12553 + 42.1234
-45.12553 + 42.1234 = 3.00213
500
-2.36 X -2.564
-2.36 X-2.564 = 6.05104
500
5 (3.2H -3.1)= 2.12
5 (3.2H- 3.1) = 2.12 H= 1.101
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