Show:
Single Digit x Single Digit
Single Digit x Double Digit
Double Digit x Double Digit
100

4 x 4=

16

100

10 X 2=20

20

100

10x 10

100

200

5 x ?= 15

3

200

12 x 3=

36 

200

20 x 10

200

300

6 x 4 = ?

24

300

? x?=100 

50 x 2, 25 x 4, 20 x5, 

300

15x15

225

400

8 x 5 =

40

400

40 x 5=

200

400

30 x 62

1860

500

? x ?= 20

5 X 4 

500

32 x 4 

128

500

? x ? = 2500

50 x 50,