Two-Digit by One-Digit
15 x 6
What is 90?
45 x 10
What is 450?
123 x 8
What is 984?
215 x 24
What is 5,160?
This method for multiplication involves drawing a box and breaking the factors into place-value units. It is sometimes called the "Window Method"
What is the Area Model?
25 x 7
What is 175?
23 x 17
What is 391?
457 x 6
What is 2,742?
389 x 47
What is 18,283?
When using the Standard Algorithm, you would do this immediately before multiplying the tens.
What is adding the zero?
37 x 8
What is 296?
67 x 21
What is 1,407?
389 x 5
What is 1,945?
563 x 32
What is 18,016
This Method of multiplication involves multiplying the individual numbers in each place value and adding each partial product separately to get the product.
What is the Partial Product Method?
46 x 9
What is 414?
58 x 19
What is 1,102?
241 x 9
What is 2,169?
472 x 58
What is 27,376?
This method of multiplication is the fastest and uses the fewest steps.
What is the Standard Algorithm?
53 x 5
What is 265?
74 x 36
What is 2,664?
732 x 7
What is 5,124?
789 x 65
What is 51,285?
This is the inverse operation of multiplication, and it can be used to check multiplication for accuracy.
What is division?