Rounding
Equal Groups
Arrays
Repeated Addition
100

Round 28 to the nearest ten

30

100

Solve 2x4 using equal groups

8

100

Draw and solve using an array

5x3

15

100

3+3+3+3=

12

200

Round 23 to the nearest ten.

20

200

 6 x 8 using equal groups

48

200

Solve and draw an array for 7x4

28

200

4+4=

8

300
When rounding to the nearest ten, the _____ place tells me if I am rounding up or down. 

ones

300

5x4 using equal groups

20 

300

Draw an array for 4 x 8

4 rows

8 columns

300

6+6+6=

18

400
When rounding to the nearest hundred, the _____ place tells me if I am rounding up or down. 

tens

400

Solve 8 x 3 using equal groups. 

24.

8 groups, 3 in each group

400

o o o o o o o

o o o o o o o 

o o o o o o o 

What multiplication equation is represented?

3 x 7

400

Solve 7 x 11 using repeated addition. 

11+11+11+11+11+11+11 = 77

500

Round 555 to the nearest hundred. 

600

500

6x7 using equal groups

42

500

Solve 10 x 7 using an array. 

70

10 rows

7 columns

500

9 + 9 + 9 + 9=

36