Vocabulary
Regrouping
1 digit + 2 digits
Teach us!
Potpourri
100

Regroup 

means to take 10 ones and make them into 1 ten.

100

 37

+15

52

100

 24

+5

29

100

10 and 10 more is 

20

100

Longitude lines go

up and down (north to south)

200
1 digit 

a number (1)  

200

  49

+13

62

200

  24

 +9

33

200

 56

+20

76

200
A round model of Earth is a

Globe

300

2 digit 

a number with tens and ones

300

 52

+19

71

300

 56

+2

58

300

30 and 50 more is 

80

300

We can identify plants by their 

leaves

400

An open number line

is a number line without numbers. 

400

  26

+16

42
400

 39

+3

42

400
20 and 10 more 

30

400

We can identify birds by their

beaks

500

34 has 4 

ones

500

  19

+19


38

500

  80

+ 6

86

500
  17

+ 9

26

500

When animals blend in with their habitat to stay safe, it is called 

camouflage