Multiplication

4's

100

4X8

32

200

4X9

36

300

4X10

40

400

4X12

48

500

4X15

60

7's

100

7X3

21

200

7X4

28

300

7X6

42

400

7X12

84

500

7X16

112

9's

100

9X3

27

200

9X5

45

300

9X9

81

400

9X12

108

500

9X16

144

12's

100

12X3

36

200

12X5

60

300

12X8

96

400

12X12

144

500

12X18

216

word problems

100

Lily has three bags of apples. Each bag contains four apples. How many apples does she have in total?

She has 12 apples in total.

200

There are six boxes of crayons. Each box contains eight crayons. How many crayons are there in all the boxes?

There are 48 crayons. 

300

A farmer plants twelve rows of corn. Each row has fifteen corn plants. How many corn plants does the farmer have in total?

The farmer has 180 corn plants.

400

A library has twenty-four shelves. Each shelf holds thirty-five books. How many books are there in the library?

There are 840 books in the library. 

500

A school has twenty-eight classrooms. Each classroom has eighteen students. If four students leave the school, how many students remain in total?

500 students remain.