Fraction & Decimal Operations with Negatives Flashcards

1

To divide fractions:

keep-change-change
divide top & divide bottom
I don't know
keep-change-flip

2

You need a common denominator with what type of fraction questions?

Multiplying
Dividing
Adding
Subtracting

3

Divide the following decimals

0.23
- 0.5
- 0.23
0.5

4

2 1/2 * (-8/15)

2/5
-4/3
4/3
-2/5

5

Divide the following decimals

0.8
- 1.25
- 0.8
1.25

6

1/2 + (-2/3)

1/6
3/5
-1/6
-5/6

7

(-9/10) - 2/5

-7/5
13/10
7/5
-13/10

8

Which of the following is NOT true for multiplying/dividing with negatives?

negative ÷ positive = positive
negative ÷ negative = positive
positive * negative = negative
negative * positive = negative

9

Multiply the Decimals

2.79
27.9
-27.9
-2.79

10

Add.

-6.45
6.45
2.85
-2.85

11

(-2/3) ÷ (-5/6)

4/5
-4/-5
-4/5
4/-5

12

1/4 - 3/4

2/0
-2/0
-1/2
1/2

13

(-2 1/5) + (-3/10)

-1 9/10 or -19/10
1 9/10 or 19/10
2 1/2 or 5/2
-2 1/2 or -5/2

14

To subtract with negatives:

always make the answer negative
multiply by the reciprocal
keep-change-change
keep-change-flip

15

subtract these decimals...

-3.56
2.56
3.56
-2.56

16

Multiply the Decimals

0.09
-0.09
-0.009
-9

17

add these decimals....

-9.7
0.7
-9.5
9.7

18

12 ÷ (-6/7)

2/7
14
-2/7
-14

19

(-10) * (-3/4)

-15/2
7 1/2
-7 1/2
15/2

20

You need to line up the decimals when you are...

Both adding and subtracting
Only adding
Only subtracting
Only multiplying

21

5 + (-3/8)

5 3/8 or 43/8
-4 5/8 or -37/8
4 5/8 or 37/8
-5 3/8 or -43/8

Fraction & Decimal Operations with Negatives

Questions 21

Fraction & Decimal Operations with Negatives

Questions 21