Enter Title

x as adding

100

6 x 4

6 + 6 + 6 +6

24

200

7 x 2

7 + 7

14

300

8 x 4

8 + 8 + 8 + 8

32

400

9 x 3

9 + 9 + 9

27

x as array

100

3 x 3

⚪⚪⚪
⚪⚪⚪
⚪⚪⚪

9

200

5 x 8

⚪⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪⚪

40

300

7 x 4

⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪

28

400

9 x 5

⚪⚪⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪⚪⚪
⚪⚪⚪⚪⚪⚪⚪⚪⚪

45

x as groups

100

3 x 6
∴  ∴  ∴  
∴  ∴  ∴

18

200

4 x 4
∷  ∷  ∷  ∷

16

300

3 x 7
∴  ∴  ∴  
∴  ∴  ∴  ∴  

21

400

3 x 4
∷  ∷  ∷  

12