1 Less and 1 More
Greatest to Least & Least to Greatest
1 Less
1 More
=
100

___, 3, ___

2,3,4

100

Least to Greatest

8, 2, 5, 1, 10


1, 2, 5, 8, 10

100

7

6

100

3

4

100

5 =7?

No

200

___, 12, ___

11, 12, 13

200

Least to Greatest

13,1, 5, 9

1,5,9,13

200

11

10

200

18

19

200

33 =34?

no

300

___, 21, ___

20, 21, 22

300

Greatest to Least

10,0,5

10,5,0

300

24

23

300

15

16

300

25 = 25?

yes

400

___, 16, ___

15,16,17

400

Greatest to Least

5,3,7

7,5,3

400

Michel has 14 candies. He gives 1 away to Vivi. How many does he have left?

11 - 1 = ____

13

400

Piper had 40 balloons. Owen gave her 1 more. How many balloons does Piper have now?

40 + 1 = 41

400

32(+1)= 34(-1)?

yes. 33=33

500

___, 30, ___

29,30,31

500

0, 4,2,3

Olivia has a magic number, It is less than 5

What numbers could it be?

______, ______, ______

0,2,3,4

500

50 (- 1 less) = ____

49

500

108 + (1 more) = _____

119

500

11= 11?

yes