Compare Shift Patterns

Compare Shift Patterns

Lesson 4.9

Multiple Choice

Fill in the blank.

When you multiply by 10, the product gets 10 times as great. The digits shift (move) ___ place(s) to the ___.

• 2; left

• 2; right

• 1; left

• 1; right

Multiple Choice

Fill in the blank.

When you multiply by 100, the product gets 100 times as great. The digits shift (move) ___ place(s) to the ___.

• 2; left

• 2; right

• 1; left

• 3; left

Multiple Choice

Fill in the blank.

When you multiply by 1,000, the product gets 1,000 times as great. The digits shift (move) ___ place(s) to the ___.

• 1; left

• 2; left

• 3; left

• 3; right

So what will happen when you multiply by decimals?

Multiple Choice

Fill in the blank.

When you multiply by 0.1, the product gets 1/10 as great. The digits shift (move) ___ place(s) to the ___.

• 1; left

• 1; right

• 2; left

• 2; right

Multiple Choice

Fill in the blank.

When you multiply by 0.01, the product gets 1/100 as great. The digits shift (move) ___ place(s) to the ___.

• 1; right

• 2; left

• 2; right

• 3; right

Multiple Choice

Fill in the blank.

When you multiply by 0.001, the product gets 1/1,000 as great. The digits shift (move) ___ place(s) to the ___.

• 1; right

• 2; right

• 3; right

• 3; left

How is multiplying by 10 or 100 similar to multiplying by 0.1 or 0.01? How is it different?

Multiplying by 10 or 0.1 shifts the digits by one place. Multiplying by 100 or 0.01 shifts the digits by two places. The difference in the direction of the shift.

Multiple Choice

0.48 x 10 = ?

• 4.8

• 48.0

• 0.48

Multiple Choice

5.6 x 0.01 = ?

• 0.56

• 0.056

• 5.6

Multiple Choice

2.49 x 0.1 = ?

• 0.249

• 24.9

• 2.49

Multiple Choice

0.6 x 0.2 = ?

• 0.12

• 12

• 1.2

Multiple Choice

0.9 x 300 = ?

• 2,700

• 27.00

• 270.0

Multiple Choice

0.9 x 0.04 = ?

• 3.600

• 36

• 0.036

• 0.4 x 10 = 0.4 x 10¹ = 4

• 0.4 x 100 = 0.4 x 10² = 40.0 (or 40)

• 0.4 x 1,000 = 0.4 x 10³ = 400.0 (or 400)

Multiple Choice

2.1 x 10¹ = ?

• 21.0

• 2.1

• 2.10

• 0.21

Multiple Choice

2.1 x 10² = ?

• 21.0

• 2.10

• 210.0

• 0.21

Multiple Choice

2.1 x 10³ = ?

• 21.0

• 2.10

• 210.0

• 2,100.0