Mental Multiplication
Pick an Algorithm
Standard Algorithm
100

773 x 2

What is 1,546?

100

245 x 2

What is 490?

100

301 x 5

What is 1,505?

200

147 x 3

What is 441?

200

20,000+2,000+40

What is 22,040?

200

216 x 5

What is 1,080?

300

1,605 x 3

What is 4,815?

300

(8x300) + (8x2)

What is 2,416?

300

539 x 9

What is 4,851?

400

5741 x 5

What is 28,705?

400

128 x 3

What is 384?

400

6 times as much as 384

What is 2,304?

500

(1167 x 3)-239

What is 3,262?

500

180 x 7

What is 1,260?

500

4 x 475

What is 1,900?