	Gen979 Calculation of 2-digit numbers	Name : _____________
			hard	harder

19 - 12 = (7)

26 + 17 =

24 + 26 =

14 - 26 =

25 + 29 =

28 - 21 =

26 - 19 =

27 + 23 =

25 + 12 =

15 - 27 =

13 + 21 =

16 - 17 =

28 + 14 =

21 - 23 =

15 - 13 =

ajjja + [ ]	ajjja + [ ]	ajjja + [ ]
		+++ [[[ ]]]

Gen979 15 /- 37
Calculation of 2-digit numbers

Name :_________________

19 - 12 = (7)

26 + 17 = (43)

24 + 26 = (50)

14 - 26 = (-12)

25 + 29 = (54)

28 - 21 = (7)

26 - 19 = (7)

27 + 23 = (50)

25 + 12 = (37)

15 - 27 = (-12)

13 + 21 = (34)

16 - 17 = (-1)

28 + 14 = (42)

21 - 23 = (-2)

15 - 13 = (2)

ajjja + [ 32 ]	ajjja + [ 179 ]	ajjja + [ 95 ]
		+++ [[[ 306 ]]]