Vocabulary
Make a ten
Doubles (may need to add 1)
Counting on
100

What are the numbers we add together called?

Addends

100

8 + 2 + 4

8 + 2 = 10

10 + 4 = 14

100

4 + 5 + 1

5 + 5 = 10

100

8 + 5

8 , 9, 10, 11, 12, 13 

200

What is a math sequence with an equal sign; shows two things are the same called?

equation

200

6 + 4 +2

6 + 4 = 10

10 + 2 = 12

200

9 + 8 + 1

9 + 9 = 18

200

29 + 4

29 , 30, 31, 32, 33

300

What is a missing number or the number to be solved called?

The unknown

300

1 + 9 + 8

1 + 9 = 10

10 + 8 = 18

300

1 + 30 + 29

30 + 30 = 60

300

67 + 8

67, 68, 69, 70, 71, 72, 73, 74, 75

400

What is a straight line with number labels for important numbers in a problem called?

Number line

400

4 + 4 + 6

4 + 6 = 10

10 + 4 = 14

400

5 + 8 + 2

8 + 7 + 1

8 + 8 = 16

16 - 1 = 15

400

99 + 4

99, 100, 101, 102, 103

500

The answer in a problem is called?

Sum

500

7 + 5 + 3

7 + 3 = 10

10 + 5 = 15

500

7 + 5 + 3 + 4

7 + 3 = 10, 5 + 4 = 9

10 + 9 + 1

10 + 10 = 20

20 - 1 = 19

500

356 + 7

356, 357, 358, 359, 360, 361, 362, 363

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