Doubling
Halving
1-digit by 1-digit
2-digit by 1-digit
Facts about Ms. DiMatteo
100

2 doubled

4

100

6 halved

3
100

3 x 4

12

100

14 x 2

28

100

How many siblings does Ms. DiMatteo have?

3

200

5 doubled

10

200

10 halved

5

200

5 x 7

35

200

18 x 3

54

200

How old is Ms. DiMatteo?

21

300

8 doubled

16

300

14 halved

7

300

6 x 8

48

300

20 x 4

80

300

Who did Ms. DiMatteo work with last year?

Mrs. Magee

400

9 doubled

18

400

20 halved

10

400

7 x 6

42

400

25 x 3

75

400

What is Ms. DiMatteo's favorite color?

Blue

500

12 doubled

24

500

28 halved

14

500

9 x 9

81

500

44 x 5

220

500

Where does Ms. DiMatteo go to school?

Loyola