Flashcards in Decimals Deck (7)

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1

## Multiply by 10^-n

###
Slides the decimal point n spaces to the left

1.34 * 10^(-3) = 0.00134

2

## Divide by 10^-n

###
Slides the decimal n places to the right

3.55 / 10^(-2) = 355

3

## How to divide by a decimal

###
1. Put the division in fraction form

2. Then "slide" away the decimal points - but always slide an equal number of times top and bottom of the fraction

35/1.4 -> 350(1 slide)/14(1 slide) -->7(50)/7(2) =25

4

## Multiplying a positive value by a decimal from 0 to 1

###
Makes the values smaller

(10 * 0.5 = 5)

5

## Dividing a positive value by a decimal between 0 and 1

###
Makes the value bigger

(10 /0.5 = 20)

6

## Squaring a decimal between 0 and 1

### Makes the decimal smaller (0.5^2 = 0.25)

7