chapter 1

Adding integers

100

-3+3

0

200

8+-8

0

300

-5+4

-1

400

-6+7

1

500

-99+137

38

Subtracting inegter

100

-6-6-6-6

-24

200

-14-14

-28

300

-2-24

-26

400

9--84

92

500

13--16

29

integer

100

24/20

1.2

200

99x99

9801

300

89/12

7.41

400

1000000x20

20000000

500

48/25

1.92

opposite

100

what is the opposite of -2

2

200

48

-48

300

13

-13

400

15

-15

500

-25

25

story problem

100

there are 3 people on dest

-3

200

there are 25 people in the bus there are 3 out

28

300

there are 30 people in the pool than 3 people get out the pool how many people are  in the pool now

27

400

there are 5 p4eople in the classroom in to go out in how many are in the classroom

3

500

there are 90 hand sanitizers. 50 was used and thrown away, How many hand sanitizers are there now.

40 Hand Sanitizers