Straight up Division
Straight up Multiplication
Optimal Prime
Robert Downey Wunior
Everyone's favorite type of problem
100

222/2=

111

100

12x3=

36

100

Is 1 a prime number? Why or why not?


1 is not a prime number. A prime number must have only 2 factors; 1 has only 1.

100

Use place value disks to divide 3,809/5=

761 R4

100

12 peaches come in a can. If Hannah, Chloe, and Rishith all share 4 cans together, how many peaches do each person get? 

12x4 = 48

48/3 = 16

16 peaches each

200

12,345/3

4,115

200

123x4=

492

200
Write in the answers all the prime numbers in this list:


2, 12, 15, 17, 35, 37, 41

2, 17, 37, 41
200

Use 4 partial products to solve 12x24

(10x4)+(2x4)+(10x20)+(10x4)


288

200

The peaches' smell attracted a baby panda bear to the three friends. Hannah wants to make a panda place for the it. If the sides are 30 meters long and 41 meters wide, how many square meters of space will the panda cub have?

Use estimation to assess the reasonableness of your answer.

30x41 = 1,230m2

300

5,439/7=

777

300

1,234x5=

6,170

300

What are all the factors of the composite number 28?

1, 2, 4, 7, 14, 28

300

Use area model to solve

55x29

1,595

300

Chloe, Hannah, and Rishith cannot decide on how to name the panda cub, so Mr. Paul said the baby's name will be number 30. How many possible factor pairs are in the new panda's name?

1 and 30

2 and 15

3 and 10

5 and 6

400

8000/9=

888 R8
400

12x30=

408

400

Can a prime number ever be a factor of another prime number?

No, a prime number can only have factors of 1 and itself.

400

Solve using 2 partial products

33x44

1,452

400

Rishith, Chloe, and Hannah said Mr. Paul's name suggestion was a stu*id idea; so Mr. Paul felt bad and decided to give them a LOT of leftover Halloween candy. Mr. Paul bought 13 packs of kitkat bars (there are 4 in each pack). How many kitkat sticks do each of them get?

13x4=52

52/3=17 R1


They gave the extra kitkat bar to the panda bear cub (instead of Mr. Paul which made him sad).

500

246,913,578/2=

123,456,789

500

123x45=

5,535

500

What is the greatest multiple of 9 that is less than 110?

108

500

Solve using area model, partial products, and distributive property

12x34

408

500

The 3 friends found out later that the panda cub came from the zoo and the zoo is thankful they kept the baby safe. To say thanks, the zoo gave them boxes of t-shirts with small sizes being 12 times as many as medium sizes. If there were 28 medium size t-shirts, how many more small sizes were there compared to the medium?

12x28= 336

336-28= 308 more small shirts than medium


P.S. The baby panda's name from the zoo was actually 30. Mr. Paul's st*pid's idea was not so stu*id after all.