for ms. kimbells class

16 × 9

• 144

• 678

• 132

• 321

• 143

90 × 4

What do you think of ms. Kimbells class

88 × 88

• 7,744

• 8374

• 7777

• 8888

• 9844

71 × 91

• 6,461

• 9,100

• 8,877

88 × 99

• 8,700

• 5,778

• 8,712

• 9,999

790 × 8

• 6,320

• 5,781

• 7,000

• 10,672

What is a fast method to multiply?

• The original algorithm

• Box method

300 × 9

• 2,700

• 809

• Who knows

• 9,647

77 × 8

• 616

• 617

• 618

• 619