Mystery 1
Mystery 2
Mystery 3
Mystery 4
Mystery 5
Mystery 6
100

What is 3 x 6

18

100

True or False 

2/4 > 3/6

False
100

A rectangle has an area of 36 square units. One side length is 6 units.
What is the missing side length?


36÷6=6 

The missing side length is 6 units.

100

161 - 59

102

100

11 x 12 = ?

132

100

100 - 89

11

200

4 x 8 =

32

200

5 x 8 

40

200

14 x 5 = ?

70

200

432 - 168

264

200

1,312 + 534 = ?

1,846

200

Little Johnny takes 20 minutes to walk home from school. If he leaves at 3:30, what time will he arrive home?

3:50

300


A rectangle has a length of 8 units and a width of 5 units.

What is the area of the rectangle? Explain how you found your answer.



8×5=40

The area of the rectangle is 40 square units.

300

What is the value of 4 in 4,762? 

4,000

300

Noah filled 7 bags with 6 apples in each bag. His family ate 8 apples, and then Noah shared the rest equally among 2 friends.
How many apples did each friend get?

7×6=42
42−8=34
34÷2=17

Each friend gets 17 apples.  

300

What is 7 x 8?

56
300

Mia baked 45 cookies. She packed the cookies equally into 5 boxes and then added 3 extra cookies to each box.
How many cookies are in each box now?

45÷5=9
9+3=12

Each box has 12 cookies.  

300

What is 150 more than 92?

242

400

34 x 5 = ?

170

400

64 x 4 =?

256

400

37 x 3= ?

111 

400

1,678 - 399 = ?

1,279

400

62 x 5 = ?

310

400

Maya drank 2/3 of a bottle of juice during lunch. After soccer practice, she drank 4/6 of another bottle of juice.

Are 2/3 and 4/6 equivalent fractions? Explain how you know using words, pictures, or numbers.

2/3 and 4/6 are equivalent fractions because they represent the same amount.

500

Emma has 5 boxes of crayons with 8 crayons in each box. She gives 6 crayons to her friend and then buys 9 more crayons.
How many crayons does Emma have now?

5×8=40
40−6=3440 - 6 = 3440−6=34
34+9=4334 + 9 = 4334+9=43

Emma has 43 crayons

500

A farmer collects 72 eggs and puts them equally into 8 baskets. Then he adds 2 more eggs to each basket.
How many eggs are in each basket now?

72÷8=972 \div 8 = 972÷8=9
9+2=119 + 2 = 119+2=11

Each basket has 11 eggs.

500

Luca ate 3/4 of a pizza at lunch. At dinner, he ate 6/8 of another pizza.

Are 3/4 and 6/8 equivalent fractions?
Explain how you know using words, pictures, or numbers.

3/4 and 6/8 are equivalent fractions because they represent the same amount.

500

Sofia has 6 shelves with 9 books on each shelf. She donates 12 books and then puts the remaining books equally into 7 bins.
How many books are in each bin?

6×9=54
54−12=42
42÷7=6

Each bin has 6 books.

500

true or false

3/4 = 6/8

true

500

What is 30 divided into 5 groups?

6

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