Fall Break Review (Multiplication)

Patterns

100

5 x 300 

1,500

200

30 x 200

6,000

300

500 x 800 

400,000

400

120 x 7000

840,000

500

20 x 300 x 600

3,600,000

Estimate

100

23 x 429

20 x 400 = 8,000

200

83.29 x 453

80 x 500 = 40,000

300

392,498 x 285.239

400,000 x 300 = 120,000,000

400

78,002 x 372

80,000 x 400 = 32,000,000

500

$293.24 x 940

$300 x 900 = $270,000

Properties

100

4 x 0 = 0 

Zero

200

2 x 1 = 2 

Identity

300

2 x 3 = 3 x 2

Commutative 

400

2 x ( 3 x 6 ) = ( 2 x 3 ) x 6

Associative 

500

2 x (3+4) = (2x3) + (2x4)

Distributive 

2-3 Digit

100

24 x 43 = 

1,032

200

65 x 39 = 

2,535

300

283 x 19 = 

5,377

400

834 x 84 = 

70,056

500

237 x 329 = 

77,973

3-4 Digit

100

723 x 924 = 

668,052

200

904 x 720 = 

650,880

300

4,005 x 294 = 

1,177,470

400

1,404 x 1,382 = 

1,940,328

500

6,729 x 5,042 = 

33,927,618