Math with negative numbers

Positive and negative addition

100

-5+3

-2

200

10+(-9)

1

300

18+(-21)

-3

400

-34+25

19

500

53+(-94)

-41

Positive and negative subtraction

100

4-(-4)

8

200

-12-4

-16

300

-23-24

47

400

39-(-23)

58

500

-96-103

-199

Positive and negative fractions addition

100

-1/3+1/4

-1/12

200

2 5/8 + (-1 4/10)

1 9/40

300

-5 9/11 + (-2 5/7)

8 41/77

400

-10 13/14 + 12 10/13

1 153/182

500

20 23/13 + (-35 8/35)

13 209/455

Positive and negative decimal addition

100

-1.5 + 2.3

.8

200

5.8 + (-3.7)

2.1

300

-8.35 + 2.49

-5.86

400

-19.23 + 15.29

3.94

500

-50.73 + 72.98

22.25

Vocab

100

What is a positive number?

Any number greater than zero

200

What is a negative number?

Any number less than zero

300

What is an integer?

A number greater or less than zero that is not a fraction or decimal.

400

What is a rational number?

Any number that can be written as a fraction or a decimal?

500

What is the difference between an integer and a rational number?

An integer can not have a fraction or a decimal.