Show:
Addition 1 Digit
Addition 2 Digits
Subtraction 1 Digit
Subtraction 2 Digits
Surprise!!
100

6+8

14

100

23+13

36

100

9-5

4

100

20-5

15

100

5,_____, 15, 20, 25

10

200

4+9

13

200
20+20

40

200

8-6

2

200

30-7

23

200

4, 8, 12, _______,, 20

16

300

5+9

14

300

45+13

58

300

7-2

5

300

50-6

44

300

3 x 4=

12

400

2+8

10

400

77+21

98

400

6-1

5

400

30-10

20

400

6, 12, 18, ______, 30

24

500

7+6

13

500

12+47

59

500

5-3

2

500

70-30

40

500

7, 14, 21, 28, ______, 42

35