Find the missing number
I can multiply/divide that
Regroup me
Standard form
Add or Subtract Me
100

4 + ? = 8 + 1

5

100

Erica has 18 pencils. She would like to share them between 3 friends. How many pencils will each friend receive?

6

100

72 - 41 =

31

100

twenty-one

21

100

10 + 8 =

18

200

6 - 3 = 4 - ?

3

200

Elijah has 5 buckets with 4 balls in each. How many balls does Elijah have in total?

20

200

80 + 71 =

151
200

eight hundred seventy-eight

878

200

56 + 2 =

58

300

24 - 18 = 3 - ?

6

300

Mrs. Carter has 21 students. She would like her students to split evenly between 3 classes. How many students will go into each class?

7

300

512 - 239 =

273

300

eight hundred sixty-two

862

300

80 + 10 =

90

400

58 + 62 = 100 + ?

20

400

Walter is planting corn. He would like to arrange the 18 seeds into 6 even rows. How many seeds will he plant in each row?

3

400

678 + 367 =

1045

400

four hundred eighty-five

485

400

46 - 3 =

43

500

1080 - 100 = ? - 20

1000

500

There are 30 second grade students going to the park. If they must ride 6 to a car, how many cars will they need?

5

500

985 - 679 =

306

500

one thousand two-hundred

1200

500

100 - 8 =

92