Extended Facts
Rules
Number Models
Number Stories
Explaining
100

If 4+9=13 then 4+_____=130

90

100

If the rule is to SUBTRACT 10, what is the missing number?


32, 22, ______, 2

12

100

Kyle swam for a total of 54 minutes over the weekend. He swam for 30 minutes on Saturday. How many minutes did he swim on Sunday?

Write the NUMBER MODEL using a question mark.

56 - 20 =?

OR

20 + ?= 56

100

Colin had a basket of dog toys. He chewed up 7 dog toys and his owner had to throw them out. Now he only has 8 dog toys left. How many dog toys did Colin have to start?

7 + 8 = 15

100

How can you use subtraction to show that 

35 + 32 = 67 makes sense?

67 - 32 = 35

200

If 16-7=9, then 160- ____=90

70

200

If the rule is to ADD 13, what is the missing number?


50, 63, ____, 89, 102

76

200

Connor saved $62 in his piggy bank. He spent $34 on a new video game. How much money does Connor have left?


Write a NUMBER MODEL using a question mark.

$62 - $34 = ?

OR 

$34 + ? = $62

200

Mike has 28 pairs of sneakers. He bought a brand new shoe rack to display his sneakers. He can fit 5 pairs of sneakers on each shelf. How many shelves does he need?

28 / 5 = 5R3 

6 SHELVES

200

How can you use addition to show that 54 - 13 = 41 makes sense?

41 + 13 = 54

300

If 13-8=5, then 63-8= ____ ?

55

300

What is the rule for the pattern below?


5, 10, 20, 40, 80

multiply by 2

300
Kylie bought three lipsticks for $15 each. Then she bought an eye shadow pallet for $22. How much money did she spend?


Write NUMBER MODELS using question marks.

$15x3= $45, $45 + $22 = ?

300
Oliver has a collection of dinosaurs. He has his dinosaurs displayed in 7 equal rows. He has 28 dinosaurs in total. How many dinosaurs are there in each row?

28/7 =4

300

How can you use multiplication to show 25 / 5 = 5 makes sense?

5 x 5 = 25

400

If 200 + 450 = 650, then 20+45=?

65

400

What is the rule for the pattern below?


48, 24, 12, 6, 3

Divide by 2

400

Ms. Kostka bought 3 packs of 10 birthday pencils for her class this year. Ms. Kostka only has 25 students. How many pencils will she have left over at the end of the year?

Write NUMBER MODELS using question marks.

3x10=30, 30-25=?

400

Bryan has two boxes of crayons with 24 crayons in each box. He then gives 13 crayons to his friend Tommy. How many crayons does Bryan have?

2x24 = 48

48 - 13 = 35

400

How can you use division to show 3x5 =15 makes sense?

15 / 3 = 5

500

If 4x5=20, then 40x50=?

2000

500
The rule is ADD 15. Find the missing numbers in the pattern.


____, 45, 60, ____, 90, 105

30 and 75

500
A class of 30 children want to get into equal groups of 5 for their science project. How many groups are there?


Write a NUMBER MODEL using a question mark.

30/5=?

500

Ms. Kostka spent her weekend going to spin classes. She went to two classes that were 45 minutes each. How many minutes did she spend at spin class?

45 x 2 = 90 

OR 

45 + 45 = 90

500

How can you use multiplication AND addition to show that 16 / 5 = 3 R 1 makes sense?

3 x 5 = 15 + 1 = 16