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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

32 + 1

33

15

33 + 1

34

15

34 + 1

35

15

35 + 1

36

15

36 + 1

37

15

37 + 1

38

15

38 + 1

39

15

39 + 1

40

15

40 - 1

39

15

39 - 1

38

15

38 - 1

37

15

37 - 1

36

15

36 - 1

35

15

35 - 1

34

15

34 - 1

33

15

33 - 1

32

15

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