Shapes
Addition and Subtraction
Tens and ones
counting
decomposing
10

Name this shape:


Square

10

5 +  1  =

6

10


11

10

Count by 10's to 100

10   20  30  40  50  60  70  80  90  100

10

With cube or drawing on your board show me how to decompose:

                            5

 4         1

3          2

20

Name this shape:


triangle

20

7  +  2  =

9

20

       

13

20

Count from :

1- 18

1  2  3  4  5  6  7  8  9  10  11  12  13 14  15 16  17  18

20

With cube or drawing on your board show me how to decompose:

                            8

7     1

6      2

5      3

4      4

30

Name this shape:


hexagon

30

8  -  1  =  

7

30


10

30

How many do you see?


10

6  +  4

30

With cube or drawing on your board show me how to decompose:

                            10

1     9

2      8  

3      7

4       6

5        5

40

Name this shape:

cube

40

____  =   10  -  5

5

40


18

40

How many do you see?


20

40

With cube or drawing on your board show me how to decompose:

                            16

10      6


50

Name this shape:

cylinder

50

____  =   10  +  4

14

50

 

Write the equation that matches the tens and ones.

10 +  5  = 15

50

Count from 45- 81

45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81

50

With cube or drawing on your board show me how to decompose:

                            19

10     9

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