6.1 Arrays and Using an Expanded Algorithm

Use the array to find the partial products. Add the partial products to find the product.

42x8

(a)  

Tags

CCSS.4.NBT.B.5

Use the array to find the partial products. Add the partial products to find the product.

39x7

(a)  

Tags

CCSS.4.NBT.B.5

Use the array to find the partial products. Add the partial products to find the product.

27x6

(a)  

Tags

CCSS.4.NBT.B.5

Use the array to find the partial products. Add the partial products to find the product.

7x14

(a)  

Tags

CCSS.4.NBT.B.5

Use the array to find the partial products. Add the partial products to find the product.

52x3

(a)  

Tags

CCSS.4.NBT.B.5

Use the array to find the partial products. Add the partial products to find the product.

4x42

(a)  

Tags

CCSS.4.NBT.B.5

Use the array to find the partial products. Add the partial products to find the product.

5x26

(a)  

Tags

CCSS.4.NBT.B.5

Alex can type 72 words per minute. How many

words can Alex type in 5 minutes?

(a)  

Tags

CCSS.3.OA.A.3

Alex can type 44 words per minute. How many

words can Alex type in 8 minutes?

(a)  

Tags

CCSS.3.OA.A.3

Explain how you can use an array to find partial products for 4 × 36.

• Show 4 rows of 3 columns of tens blocks. Then show 4 rows of 6 ones blocks. Add the totals of the tens and ones blocks together

• Show 3 rows of 3 columns of tens blocks. Then show 4 rows of 6 ones blocks. Add the totals of the tens and ones blocks together

• Show 4 rows of 4 columns of tens blocks. Then show 4 rows of 6 ones blocks. Add the totals of the tens and ones blocks together

• Show 3 rows of 4 columns of tens blocks. Then show 6 rows of 4ones blocks. Add the totals of the tens and ones blocks together

Tags

CCSS.4.NBT.B.5