Show:
Multiplying Double Digit
Fast Multiplication (trio)
Rounding/Estimating Multiplication
Distributive Property
100

512 x 4

2,048

100

4 x 2

3 x 4

4 x 5

8

12

20

100

203 x 46

200 x 50 = 10,000

100

(2+2) x (5+3) =

(4)x(8)=32

200

725 x 6

4,350

200

3 x 5

6 x 2

7 x 5

15

12

35

200

540 x 63

500 x 60 = 30,000

200

(20+40) x (3+2) =

(60) x (5) = 300

300

253 x 9

2,277

300

8 x 7

9 x 8 

5 x 8

56

72

40

300

397 x 24

400 x 20 = 800

300

(5+5) X (9+2) =

(10) x (11) = 110

400

876 x 5

4,380

400

8 x 8

4 x 6

9 x 6

64

24

54

400

569 x 72

600 x 70 = 4200

400

(10+35)x(7+2)=

(45) x (9) = 405

500

633 x 4

2,532

500

11 x 4

12 x 3 

9 x 12

44

36

108

500

695 x 47

700 x 50 = 3500

500

(16+23)x(4+5)=

(39)x(9)=351