Vocab
Subtraction
Addition
Counters
All mixed up!
100

what do you call a positive number that cancels out a negative number or the opposite?

 What is Zero Pairs

100

7-5

2

100

5+4

9

100

I have 5 yellow counters and I add 1 more yellow counter, What number do I have now?

6

100

5 + -6.  Model using a number line.

-1

200

What do you call numbers below 0?

What is Negative Numbers

200

5-8

-3

200

-1+1

0

200

If I have 5 red counters and add 2 more, what do I have now?

-7

200

Do numbers that are adding go right or left?

Right

300

What do you call numbers above 0?

What is Positive Numbers

300

5-15

-10

300

-5+6. 

1

300

If I have 9 yellow counters and add 3 red counters what do I have now? Model

6

300

-6 - -8.  Model with counters

14

400

What are all negative numbers called?

What is integers

400

8-10

-2

400

6+-7

-1

400

I have 10 red counters and add 4 yellow counters,  how many do I have?

-6

400

I put 50 red counters down and put 50 yellow counters how many do I have now?

0

500

Is zero positive or negative?

Neither

500

-5 - 6

-11

500

-12+-2

-14

500

I have 50 red counters and I put 51 yellow counter what do I have now?

1

500

Do numbers that are subtracting go left or right?

left