Math Test 1 Flashcards

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1
Q

Exponent Form

A

W^5

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2
Q

Expanded form

A

3^3 = 3x3x3

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3
Q

Solve

2(19-17)^3 - 3(-7+9)^2

A

2(2)^3 -3(2)^2
2(8)-3(4)
16-12
4

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4
Q

Solve

-7(-1) + (-3)(4
_________________
-2)(5) + (-6)(-8)

A

7+(-12)
________
-10+48

= -5
___
38

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5
Q

LCM

36, 21, 45

A
    1. 45
      7x3. 9 x 5
      6 x 6. 3x3
      2x3 2x3

2x2x3x3x5x7= 1260

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6
Q

Adding fractions

  1. 3
    _ + _
    6 8
A

Find the LCM
24

Leave that on the bottom
M x 6 = 24? 
4
M x 8 = 24?
3

Put on top. Add then simplify

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7
Q

Subtracting

A

Do the same process as adding

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8
Q

Adding and subtracting mixed numbers

A

Remain the same process as adding and subtracting normal fractions. Then add or subtract the big numbers and leave it in the front

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9
Q

Adding and subtracting mixed numbers with a bigger numerator than denominator as the answer

A

Once you’ve solved the problem and you have a bigger numerator you then take that small fraction and split it into two with the numerators being the two numbers that equaled that big one number. Add and simplify that. As for the box number on the left, add one to that for your new final answer

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10
Q

Multiplying fractions

A

Multiply straight across and simplify

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11
Q

Dividing fractions

A

Flip the second fraction and change it to multiplication

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12
Q

Word problems

A
  1. Let statement
  2. Write the equation
  3. Work
  4. Answer with units
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13
Q

Adding and subtracting decimals

A

Always make sure the decimal points line up!!!

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14
Q

Right side of a decimal

A

Tenths, hundredths, thousandths, ten thousandths, hundred thousands, millionths

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15
Q

Left side of a decimal

A

Ones, tens, hundreds, thousands, 10 thousands, 100 thousands, millions

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16
Q

Convert decimal to fraction

0.897

A

Divide by however many numbers are right of the decimal.
Numbers = zeros

897
____
1000

17
Q

Convert into a fractions

0.18

A

100

= 9

50

18
Q

Rounding to the nearest 10

10,374

A

10,370

-

19
Q

Rounding to the nearest 10

981.376

A

980.000

-

20
Q

Percent to decimal

45%

A

Divide by 100

45/100 = .45

21
Q

Percent to decimal

9%

A

9/100 = .09

22
Q

To get rid of a ____ we, ____

A

Percent, divide by 100

23
Q

Convert to a percent

.55

A

.55x100 = 55%

24
Q

Convert to a percent

.04

A

.04x100 = 4%

25
Q

Convert to decimal

.2%

A

2/100 = .002

26
Q

Convert to a decimal

653%

A

6.53%

27
Q

Fraction to a percent

A

Divide the top number by the bottom number

28
Q

Product property

X^a • X^b

A

X^a+b

29
Q

Dividing powers
X^a
____
X^b

A

X^a-b

30
Q

Power property

(X^a)^b

A

X^a•b

31
Q

Precision

A

The smallest unit with which the measurement is made (position of last SD)