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Plus 1/Minus 1

English 80 Public

Adding and subtracting 1 from digits up to 40

Study Slideshow

#Subtraction #Addition #plus 1 #plus one #add 1 #subtract 1 #minus 1 #minus one

17 + 1

18

15

18 + 1

19

15

19 + 1

20

15

20 + 1

21

15

21 + 1

22

15

22 + 1

23

15

23 + 1

24

15

24 + 1

25

15

25 + 1

26

15

26 + 1

27

15

27 + 1

28

15

28 + 1

29

15

29 + 1

30

15

29 + 1

30

15

30 + 1

31

15

31 + 1

32

15

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