	Gen838 Calculation of 2-digit numbers	Name : _____________
		refresh

28 - 16 = (12)

21 - 10 =

12 + 9 =

+ [ ]

22 + 19 =

29 - 8 =

38 - 19 =

+ [ ]

16 - 9 =

16 + 21 =

27 - 10 =

+ [ ]

20 + 10 =

32 - 10 =

19 + 15 =

+ [ ]

33 - 21 =

34 - 16 =

46 - 21 =

+ [ ]

16 + 11 =

33 - 12 =

23 + 22 =

+ [ ]

7 + 20 =

34 - 25 =

40 - 20 =

+ [ ]

13 + 14 =

17 - 7 =

22 + 9 =

+ [ ]

30 - 12 =

18 + 8 =

19 + 9 =

+ [ ]

25 - 9 =

16 - 7 =

35 - 15 =

+ [ ]

		+++ [[[ ]]]

Gen838 27 /- 19
Calculation of 2-digit numbers

Name : ____________________

28 - 16 = (12)

21 - 10 = (11)

12 + 9 = (21)

+ [ 44 ]

22 + 19 = (41)

29 - 8 = (21)

38 - 19 = (19)

+ [ 81 ]

16 - 9 = (7)

16 + 21 = (37)

27 - 10 = (17)

+ [ 61 ]

20 + 10 = (30)

32 - 10 = (22)

19 + 15 = (34)

+ [ 86 ]

33 - 21 = (12)

34 - 16 = (18)

46 - 21 = (25)

+ [ 55 ]

16 + 11 = (27)

33 - 12 = (21)

23 + 22 = (45)

+ [ 93 ]

7 + 20 = (27)

34 - 25 = (9)

40 - 20 = (20)

+ [ 56 ]

13 + 14 = (27)

17 - 7 = (10)

22 + 9 = (31)

+ [ 68 ]

30 - 12 = (18)

18 + 8 = (26)

19 + 9 = (28)

+ [ 72 ]

25 - 9 = (16)

16 - 7 = (9)

35 - 15 = (20)

+ [ 45 ]

+++ [[[ 661 ]]]