Page 38 - SPARK OF MATH book 4

Partial Product method.

Find

Step 1: multiply one digit at a time to get the product.

Step 2: list all the partial products.

Step 3: add them all together.

41

× 23
3 3×1= 3 Multiply by ones
3×40= 120

20 20×1= 20 Multiply by tens
800 20×40= 800
943 Add the partial products to get the answer

Find the product.

65 26 52 53

34 37 64 72

20 4x5 7x6

240 4x60 7x20

150 30x5 30x6

1800 30x60 30x20

2210

Your Work

Choose one of the numbers below and multiply the inside.

×
×
×
×
657 98 537 35 245 29 943 48

38