Number Line
Number Stories
Number Models
What's the Rule?
100

Start at 5. Count up 3. Where do you land?

8

100

Isaiah had 8 books. He got 7 more books. How many books does he have in all?

15 books

100

12 + 7 =

19

100

Rule: ?
3, 7, 11, 15 19

+4

200

Start at 8. Count up 7. Where do you land?

15

200

Maddie is playing with 5 dolls and Luna is playing with some dolls. Both girls are playing with 13 dolls in all. How many dolls is Luna playing with?

5+ 8 = 13 dolls

200

14 - 9 =

5

200

Rule: ?
75, 70, 65, 60, 55, 50

-5
300

Start at 15. Count back 9. Where do you land?

6

300

Manuel has 16 marbles. He gives Liam some marbles. He ends up with 11 marbles. How many marbles did Manuel give to Liam?

5 marbles

300

15 - __ = 2

13

300

Rule: ?
26, 20, __, 8, 2

Rule:-6
26, 20, 14, 8, 2

400

Start at 18. Count back 13. Where do you land?

5

400

Monze has 12 hair bows. 7 bows are pink. The rest are different colors. How many bows are NOT pink?

5 bows.

400

17 - __ = 11

6

400

Rule: ?
34, __, 36, 37, __, __

Rule:+1
34, 35, 36, 37, 38,39

500

Start at 7. Hop to 15. How many hops are in between?

8 hops

500

Julia had some rocks in her right pocket and 6 in her left pocket. She had 15 rocks in all. How many rocks are in her right pocket?

9 rocks

500

___ - 4 = 9

13 - 4 = 9

500

Rule:+4
27, __, __, __, __, __

Rule:+4
27, 23, 19, 15, 11, 7

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